Reference layer · v1-DRAFT · written 2026-09-03
Peptide Therapeutics — Full Reference
Pharmacology, regulatory status, anti-doping, evidence tiers, safety architecture, sourcing and protocol logic — the layer the product this was written against does not contain.
This document is AI-synthesised and unverified. Every number in it is a hypothesis until the verification queue in §19 is cleared. 12 claims carry an explicit flag. It is not medical advice and not a self-administration manual.
- Tier citations
- 66
- Sections
- 20
- Unverified flags
- 12
- Queue items
- 16
T116T28T311T421T58T62
A goal-to-compound lookup is the mechanic this document was written to take apart — it is what lets a rodent study and a Phase 3 trial look alike. So this one answers from the document's own ranked hierarchies in §15: strongest evidence first, the free interventions where the evidence actually puts them, and the compounds the category markets at the rank the document assigns them.
No goal in the document matches that. Pick one of the buttons above — the matcher only answers what this reference actually covers, and inventing a twentieth goal is how the errors in §16 got made.
§15 Pillar 1 — insulin resistance
Lose weight or body fat
This is the one area of the field with T1 evidence at scale, and it belongs to the incretins — not to the peptides the category markets. The document's own ranked hierarchy puts four free behavioural interventions above every drug, and puts MOTS-c and 5-Amino-1MQ at rank 8, rodent-only.
Ranked by evidence strength, strongest first
-
1
Energy balance and fat mass reduction, particularly visceral
behaviour
T1
-
2
Resistance training plus aerobic training
behaviour
T1
-
3
Sleep extension to 7–9 hours
behaviour
T1
-
4
Dietary quality: fibre, protein adequacy, alcohol reduction
behaviour
T1
-
5
Metformin
drug
T1
-
6
GLP-1 / GIP-GLP-1 agonists
drug
T1
-
7
Tesamorelin, for visceral fat, in its licensed population — T1 narrow
drug
T1
-
8
MOTS-c, 5-Amino-1MQ — rodent
peptide
T4
What the class actually does
Class-wide across GLP-1 and GIP/GLP-1: nausea, vomiting, diarrhoea, constipation; gallbladder disease and cholelithiasis; a pancreatitis signal; gastroparesis and delayed gastric emptying, which has produced anaesthesia aspiration guidance; a diabetic retinopathy progression signal with rapid HbA1c reduction; SUBSTANTIAL LOSS OF LEAN MASS alongside fat mass; and weight regain on discontinuation, demonstrated in the STEP 4 withdrawal design. §6
Do not use if
Personal or family history of medullary thyroid carcinoma or MEN2 — boxed contraindication. History of pancreatitis. Severe gastroparesis. Pregnancy. Type 1 diabetes. Caution with rapid HbA1c reduction in existing retinopathy. Anaesthesia planning required before elective procedures. §11
Measure first
Before an incretin, add lipase and amylase; calcitonin only if history warrants; document thyroid and family history. §11
Interactions
Incretins delay gastric emptying, altering absorption of oral medicines — narrow-therapeutic-index drugs need monitoring and warfarin INR should be checked more often. Combining with insulin or a sulfonylurea requires reducing that drug's dose or hypoglycaemia results. §11
Approved, and indicated for this
These have a label, a dose that is public prescribing information, and a regulator behind them.
SemaglutideOzempic / Wegovy / RybelsusT1
- Status
- Type 2 diabetes (Ozempic); chronic weight management (Wegovy); T2D oral (Rybelsus)
- Label dose
- Wegovy: titrate over 16+ weeks to 2.4 mg weekly. Ozempic: 0.25 mg weekly ×4 wks, then 0.5, 1.0, up to 2.0 mg weekly. Rybelsus: 3/7/14 mg daily, fasted, with ≤120 mL water.
- Warnings
- Boxed warning: thyroid C-cell tumours in rodents. Contraindicated with personal or family history of medullary thyroid carcinoma or MEN2.
- Anti-doping
- Not on the prohibited list as of this document's knowledge — but weight-class sports and individual federations may have their own rules.
Rybelsus delivers roughly 1% bioavailability via the SNAC absorption enhancer. The 2023 SELECT trial showed cardiovascular benefit in people with obesity and established cardiovascular disease without diabetes.
Read the full entry in §6
TirzepatideMounjaro / ZepboundT1
- Status
- Type 2 diabetes / obesity
- Label dose
- 2.5 mg weekly start, titrate to max 15 mg weekly.
- Warnings
- Same boxed warning as the GLP-1 class: thyroid C-cell tumours in rodents, MTC/MEN2 contraindication.
- Anti-doping
- Not on the prohibited list as of this document's knowledge.
Dual GIP/GLP-1 agonist.
Read the full entry in §6
LiraglutideVictoza / SaxendaT1
- Status
- Type 2 diabetes / obesity
- Label dose
- Daily subcutaneous.
- Warnings
- Same class warnings.
- Anti-doping
- Not on the prohibited list as of this document's knowledge.
Read the full entry in §6
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
TesamorelinEgriftaT1 narrow
- Status
- The ONLY approved indication is reduction of excess visceral adipose tissue in HIV-associated lipodystrophy.
- Label dose
- 2 mg SC daily (label).
- Warnings
- Label warnings: raises IGF-1, glucose intolerance and new-onset diabetes, injection site reactions, neoplasm considerations, hypersensitivity.
- Anti-doping
- S2 — peptide hormones, growth factors and mimetics. Prohibited.
The proof that a GHRH analog can clear a full regulatory pathway, and the best available guide to what the mechanism does over a year: visceral fat falls, IGF-1 rises, glucose tolerance worsens in a meaningful fraction of patients. That last item is routinely omitted from performance marketing.
Read the full entry in §5
SetmelanotideImcivreeT1
- Status
- Obesity from specific genetic deficiencies only (POMC, PCSK1, LEPR, BBS).
- Label dose
- Per label.
- Anti-doping
- Not listed. Verify.
Melanocortin-4 agonist. Narrow genetic indication — this is not a general obesity drug.
Read the full entry in §6
Tested in humans, and failed
A compound with a failed adequately-powered trial has stronger evidence AGAINST it than one with no trial at all.
AOD-9604T2 NEGATIVE
- Status
- hGH fragment 176-191. Not approved as a drug.
- Anti-doping
- Covered by S0/S2 logic. Verify.
Metabolic Pharmaceuticals ran human obesity trials. The Phase 2b FAILED TO SEPARATE FROM PLACEBO on weight loss. A compound with a failed adequately-powered human trial has stronger evidence AGAINST it than a compound with no trial at all. The source excerpt asserts it 'directs fat burning'.
Read the full entry in §5
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
MOTS-cT4
- Status
- Not approved.
- Warnings
- No human safety data.
- Anti-doping
- S0, and S4 by the AMPK-activator logic (AICAR is explicitly listed). PROHIBITED.
Mitochondrial-derived peptide. Improves insulin sensitivity and metabolic flexibility IN MICE. Human data are minimal, no published human PK. 'Exercise in a syringe' is a researcher's metaphor for a rodent finding, presented to buyers as a product claim.
Read the full entry in §6
5-Amino-1MQT4
- Status
- NOT A PEPTIDE — a methylquinolinium small molecule, an NNMT inhibitor. Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
Rodent-level evidence for fat mass reduction. Raises intracellular NAD+ in preclinical models.
Read the full entry in §6
Runs against this goal
Either the mechanism works the wrong way for what you asked, or the source material has it inverted.
GHRP-6T3
- Status
- Not approved.
- Warnings
- Pronounced appetite stimulation via the ghrelin receptor. Raises cortisol and prolactin.
- Anti-doping
- S2. PROHIBITED.
The appetite effect runs directly against a fat-loss goal.
Read the full entry in §5
MK-677 / ibutamorenT2
- Status
- NOT A PEPTIDE — an orally active small-molecule ghrelin receptor agonist. Not approved; development discontinued.
- Warnings
- Consistently: increased appetite, oedema, WORSENED INSULIN SENSITIVITY and raised fasting glucose. A trial in elderly hip-fracture patients was notable for adverse events.
- Anti-doping
- S2. PROHIBITED.
Real human trial data exists — this is T2, unusually strong for an unapproved compound, and the human data is what shows the downside. Consistently raises IGF-1.
Read the full entry in §5
§15 Pillar 1 — insulin resistance
Fix insulin resistance / metabolic health
Muscle contraction stimulates GLUT4 translocation through an insulin-INDEPENDENT, AMPK-linked pathway. That is why exercise improves glucose disposal in people whose insulin signalling is impaired, and it is the most robustly evidenced intervention available. Note too that the GH-axis compounds run the wrong way here: that whole class worsens insulin sensitivity.
Ranked by evidence strength, strongest first
-
1
Energy balance and fat mass reduction, particularly visceral
behaviour
T1
-
2
Resistance training plus aerobic training
behaviour
T1
-
3
Sleep extension to 7–9 hours
behaviour
T1
-
4
Dietary quality: fibre, protein adequacy, alcohol reduction
behaviour
T1
-
5
Metformin
drug
T1
-
6
GLP-1 / GIP-GLP-1 agonists
drug
T1
-
7
Tesamorelin, for visceral fat, in its licensed population — T1 narrow
drug
T1
-
8
MOTS-c, 5-Amino-1MQ — rodent
peptide
T4
What the class actually does
Everything on the GH axis — GHRH analogs, GHRPs, GH itself — worsens insulin sensitivity. Tesamorelin's own label carries glucose intolerance and new-onset diabetes. MK-677 consistently raises fasting glucose. For this specific goal those compounds are not neutral, they are counterproductive. §5, §11
Do not use if
Caution in any diabetes or prediabetes for the entire GH-axis class. §11
Measure first
Measurement for this goal: fasting glucose with fasting insulin computed as HOMA-IR; HbA1c; triglyceride-to-HDL ratio; ApoB; an oral glucose tolerance test with insulin if the picture is unclear. §15
Approved, and indicated for this
These have a label, a dose that is public prescribing information, and a regulator behind them.
SemaglutideOzempic / Wegovy / RybelsusT1
- Status
- Type 2 diabetes (Ozempic); chronic weight management (Wegovy); T2D oral (Rybelsus)
- Label dose
- Wegovy: titrate over 16+ weeks to 2.4 mg weekly. Ozempic: 0.25 mg weekly ×4 wks, then 0.5, 1.0, up to 2.0 mg weekly. Rybelsus: 3/7/14 mg daily, fasted, with ≤120 mL water.
- Warnings
- Boxed warning: thyroid C-cell tumours in rodents. Contraindicated with personal or family history of medullary thyroid carcinoma or MEN2.
- Anti-doping
- Not on the prohibited list as of this document's knowledge — but weight-class sports and individual federations may have their own rules.
Rybelsus delivers roughly 1% bioavailability via the SNAC absorption enhancer. The 2023 SELECT trial showed cardiovascular benefit in people with obesity and established cardiovascular disease without diabetes.
Read the full entry in §6
TirzepatideMounjaro / ZepboundT1
- Status
- Type 2 diabetes / obesity
- Label dose
- 2.5 mg weekly start, titrate to max 15 mg weekly.
- Warnings
- Same boxed warning as the GLP-1 class: thyroid C-cell tumours in rodents, MTC/MEN2 contraindication.
- Anti-doping
- Not on the prohibited list as of this document's knowledge.
Dual GIP/GLP-1 agonist.
Read the full entry in §6
LiraglutideVictoza / SaxendaT1
- Status
- Type 2 diabetes / obesity
- Label dose
- Daily subcutaneous.
- Warnings
- Same class warnings.
- Anti-doping
- Not on the prohibited list as of this document's knowledge.
Read the full entry in §6
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
TesamorelinEgriftaT1 narrow
- Status
- The ONLY approved indication is reduction of excess visceral adipose tissue in HIV-associated lipodystrophy.
- Label dose
- 2 mg SC daily (label).
- Warnings
- Label warnings: raises IGF-1, glucose intolerance and new-onset diabetes, injection site reactions, neoplasm considerations, hypersensitivity.
- Anti-doping
- S2 — peptide hormones, growth factors and mimetics. Prohibited.
The proof that a GHRH analog can clear a full regulatory pathway, and the best available guide to what the mechanism does over a year: visceral fat falls, IGF-1 rises, glucose tolerance worsens in a meaningful fraction of patients. That last item is routinely omitted from performance marketing.
Read the full entry in §5
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
MOTS-cT4
- Status
- Not approved.
- Warnings
- No human safety data.
- Anti-doping
- S0, and S4 by the AMPK-activator logic (AICAR is explicitly listed). PROHIBITED.
Mitochondrial-derived peptide. Improves insulin sensitivity and metabolic flexibility IN MICE. Human data are minimal, no published human PK. 'Exercise in a syringe' is a researcher's metaphor for a rodent finding, presented to buyers as a product claim.
Read the full entry in §6
5-Amino-1MQT4
- Status
- NOT A PEPTIDE — a methylquinolinium small molecule, an NNMT inhibitor. Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
Rodent-level evidence for fat mass reduction. Raises intracellular NAD+ in preclinical models.
Read the full entry in §6
HumaninT4
- Status
- Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
Mitochondrial-derived, cytoprotective and neuroprotective in models.
Read the full entry in §6
Runs against this goal
Either the mechanism works the wrong way for what you asked, or the source material has it inverted.
MK-677 / ibutamorenT2
- Status
- NOT A PEPTIDE — an orally active small-molecule ghrelin receptor agonist. Not approved; development discontinued.
- Warnings
- Consistently: increased appetite, oedema, WORSENED INSULIN SENSITIVITY and raised fasting glucose. A trial in elderly hip-fracture patients was notable for adverse events.
- Anti-doping
- S2. PROHIBITED.
Real human trial data exists — this is T2, unusually strong for an unapproved compound, and the human data is what shows the downside. Consistently raises IGF-1.
Read the full entry in §5
IpamorelinT3
- Status
- Not approved. Novo Nordisk development discontinued (post-operative ileus). On FDA's 503A CATEGORY 2 bulk list.
- Warnings
- §11 GH-axis contraindications: active or recent malignancy, active proliferative diabetic retinopathy, acute critical illness, untreated hypothyroidism, pregnancy, benign intracranial hypertension history. Worsens insulin sensitivity.
- Anti-doping
- S2. PROHIBITED.
Relatively selective; less cortisol and prolactin release than GHRP-2/6.
Read the full entry in §5
GHRP-2T3
- Status
- Not approved.
- Warnings
- Raises cortisol and prolactin. Full §11 GH-axis contraindications apply.
- Anti-doping
- S2. PROHIBITED.
Read the full entry in §5
GHRP-6T3
- Status
- Not approved.
- Warnings
- Pronounced appetite stimulation via the ghrelin receptor. Raises cortisol and prolactin.
- Anti-doping
- S2. PROHIBITED.
The appetite effect runs directly against a fat-loss goal.
Read the full entry in §5
HexarelinT4
- Status
- Not approved.
- Warnings
- Full §11 GH-axis contraindications apply.
- Anti-doping
- S2. PROHIBITED.
Most pronounced desensitisation of the group with continued use.
Read the full entry in §5
CJC-1295 with DACT3
- Status
- Not approved anywhere. Development by ConjuChem discontinued.
- Warnings
- A death occurred in an early clinical programme; the causal relationship was disputed. §19 item 9 flags this as a recollection that may be wrong — VERIFY against primary sources.
- Anti-doping
- S2. PROHIBITED.
Its six-to-eight-day albumin-bound half-life produces CONTINUOUS elevation, not a pulse. Continuous stimulation of a G-protein-coupled receptor tends toward desensitisation and downregulation. Pharmacologically a different intervention from 'CJC-1295 no DAC', which the market sells under nearly the same name.
Read the full entry in §5
Somatropin (rhGH)T1
- Status
- Defined indications only: paediatric and adult GHD, Turner, SGA, Prader-Willi, short bowel, HIV wasting. NOT approved for anti-ageing or athletic performance in any major jurisdiction.
- Label dose
- Per indication-specific label.
- Warnings
- Arthralgia, myalgia, carpal tunnel, oedema, insulin resistance. In critical illness a landmark 1999 NEJM trial found INCREASED MORTALITY with high-dose GH.
- Anti-doping
- S2. Prohibited.
Bypasses the IGF-1/somatostatin feedback loop and suppresses endogenous production — so the document's claim that peptides 'do not create dependence' is false for this mechanism.
Read the full entry in §5
§15 Pillar 2 — inflammation
Reduce chronic inflammation
'Chronic silent inflammation' is not a diagnosis and has no diagnostic criteria. hs-CRP is the practical marker with outcome data behind it. IL-6 is NOT a standard clinical monitoring assay — short-lived, highly variable, rises acutely with exercise — so building a protocol around serial IL-6 is measurement theatre. Every peptide marketed for this is T4, and the one intervention in this space that got a properly powered human trial missed its endpoint.
Ranked by evidence strength, strongest first
-
1
Energy balance and fat mass reduction, particularly visceral
behaviour
T1
-
2
Resistance training plus aerobic training
behaviour
T1
-
3
Sleep extension to 7–9 hours
behaviour
T1
-
4
Dietary quality: fibre, protein adequacy, alcohol reduction
behaviour
T1
-
5
Treatment of periodontal disease where present
behaviour
T1
-
6
Treatment of sleep apnoea where present
behaviour
T1
-
7
BPC-157, KPV, LL-37, SS-31 — the excerpt's anti-inflammatory protocol — for this purpose
peptide
T4
The document corrects this
Exercise-derived IL-6 is a MYOKINE with net anti-inflammatory downstream effects including induction of IL-10 and IL-1ra. Conflating it with adipose- and macrophage-derived chronic IL-6 leads to the wrong conclusion: suppressing a signal that is part of the adaptation. §15
What the class actually does
The excerpt's 'anti-inflammatory base protocol' — BPC-157 alone weeks 1-2, add SS-31 weeks 3-4, add MOTS-c weeks 5-8 — has no dose, no route and no frequency, and combines three compounds with no human efficacy data in a sequence that makes attribution impossible. It also places the first biomarker check at week 9 with no baseline, which makes that measurement uninterpretable. §15
Do not use if
Immune modulators: autoimmune disease, solid organ transplant, any immunosuppression. LL-37 specifically: psoriasis, rosacea, lupus. §11
Measure first
hs-CRP, with a baseline established first. §11, §15
Tested in humans, and failed
A compound with a failed adequately-powered trial has stronger evidence AGAINST it than one with no trial at all.
LarazotideT2 NEGATIVE
- Status
- Not approved. Phase 3 in coeliac disease did not meet its primary endpoint.
- Anti-doping
- Not listed. Verify.
Tight-junction regulator — the most rigorously tested 'leaky gut' intervention, and it FAILED. Relevant to any protocol built on intestinal permeability.
Read the full entry in §7
Elamipretide (SS-31)T2, mixed
- Status
- Trials in Barth syndrome (TAZPOWER), primary mitochondrial myopathy (MMPOWER-3), dry AMD, LHON.
- Anti-doping
- Covered by S0 logic for non-approved substances. Verify.
Cardiolipin-binding tetrapeptide. MMPOWER-3 MISSED ITS PRIMARY ENDPOINT. The Barth programme went through an FDA advisory committee with a narrow vote and subsequent regulatory back-and-forth. Approval status may have changed — §19 item 2. Presenting it as an available performance tool overstates a programme with a mixed trial record.
Read the full entry in §7
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
BPC-157T4
- Status
- Not approved in any major jurisdiction. On FDA's 503A CATEGORY 2 bulk drug substances list, which ended lawful US compounding.
- Warnings
- Mechanism involves angiogenesis and VEGF signalling. The theoretical concern is promotion of occult malignancy or vascular lesions. Mechanistic, not demonstrated — and also not excluded: there is no long-term human safety data of any kind. §11: do not use with any history of malignancy, or any undiagnosed lump, lesion or bleeding, until investigated.
- Anti-doping
- S0. Added to the prohibited list in 2022. PROHIBITED.
Extensive rodent data, largely from ONE group in Zagreb. Went into human trials as PL 14736 for inflammatory bowel disease; the programme did not proceed to approval. NO PUBLISHED HUMAN PK — so even dosing frequency is guesswork. Category 2 is an affirmative safety finding, not merely an absence of approval.
Read the full entry in §7
KPVT4
- Status
- Not approved. CATEGORY 2 bulk list.
- Warnings
- Not characterised in humans.
- Anti-doping
- S0. PROHIBITED.
Lys-Pro-Val, the C-terminal tripeptide of α-MSH. Anti-inflammatory via melanocortin receptor signalling in models, mostly gut and skin.
Read the full entry in §7
ARA-290 / cibinetideT3
- Status
- Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
EPO-derived helix B peptide, non-erythropoietic. Small trials in sarcoidosis small-fibre neuropathy.
Read the full entry in §7
Runs against this goal
Either the mechanism works the wrong way for what you asked, or the source material has it inverted.
LL-37T4
- Status
- Not approved.
- Warnings
- CONTRAINDICATED in psoriasis, rosacea and lupus. §11 also lists autoimmune disease, transplant and immunosuppression for immune modulators.
- Anti-doping
- Covered by S0 logic. Verify.
THE SOURCE EXCERPT INVERTS THIS. LL-37 is a dual-function human cathelicidin: antimicrobial, but also strongly PRO-inflammatory in several contexts and mechanistically implicated in the pathology of psoriasis, rosacea and lupus, where it complexes with self-DNA to activate plasmacytoid dendritic cells and drive interferon responses. Using it as an anti-inflammatory is a genuine contraindication signal the source material reverses.
Read the full entry in §8
§15 Pillar 3 — sleep and the nocturnal axis
Sleep better
This is the pillar with the STRONGEST human evidence in the entire document, and it is the one the source product truncates. These are randomised or crossover human studies with effect sizes larger than anything demonstrated for any unapproved peptide here — and the intervention is free. Nothing in the peptide column competes.
Ranked by evidence strength, strongest first
-
1
Sleep opportunity — actually being in bed long enough
behaviour
T1
-
2
Timing regularity
behaviour
T1
-
3
Light exposure
behaviour
T1
-
4
Alcohol removal
behaviour
T1
-
5
Treatment of undiagnosed sleep apnoea
behaviour
T1
-
6
GHRH administration — modestly increases slow-wave sleep in research settings — not a licensed use
peptide
T3
-
7
DSIP — essentially no human evidence
peptide
T5
What the class actually does
Growth hormone secretion is concentrated in the first episodes of slow-wave sleep. Fragmenting or suppressing slow-wave sleep suppresses the nocturnal GH pulse directly — and NO SECRETAGOGUE RESTORES A PULSE THE ARCHITECTURE IS NOT THERE TO SUPPORT. If you are chasing GH, this is the upstream lever, not the peptide. §15
The human evidence, with effect sizes to verify
- Restricting healthy young men to ~4 hours in bed for 6 nights produced a marked reduction in glucose tolerance and insulin sensitivity (Spiegel, Leproult & Van Cauter, Lancet 1999). Verify the exact effect size before quoting a percentage.
- Restricting sleep to ~5 hours per night for one week reduced daytime testosterone by roughly 10–15% in healthy young men (Leproult & Van Cauter, JAMA 2011). Verify.
- Sleep restriction during caloric restriction shifted the composition of weight lost AWAY from fat and toward lean mass (Nedeltcheva et al., Ann Intern Med 2010). Verify.
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
DSIPT5
- Status
- Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
'Delta sleep-inducing peptide.' The evidence that it induces sleep IN HUMANS is very weak — essentially none.
Read the full entry in §8
Mod-GRF(1-29)T4
- Status
- Not approved. Sold as 'CJC-1295 without DAC', which is a misnomer.
- Anti-doping
- S2. PROHIBITED.
Short half-life (~30 min), pulsatile.
Read the full entry in §5
§7 — repair, regenerative and mitochondrial
Heal an injury — tendon, ligament, muscle
This is where the marketing is loudest and the evidence is thinnest. The two compounds that dominate this category are T4 — rodent — from largely single-group corpora, with NO published human pharmacokinetics, meaning even dosing frequency is guesswork. Both are on FDA's category 2 list, which is an affirmative safety finding rather than an absence of approval. Both are prohibited in tested sport.
Ranked by evidence strength, strongest first
-
1
Confirm the boring variables are fixed: sleep, protein adequacy, alcohol, programmed loading
behaviour
T1
-
2
Accept the biological floor — tissue repair is on the timescale of tissue repair, which no signalling molecule shortens — §14 principle 9
behaviour
T1
-
3
BPC-157, TB-500 — rodent, no human PK
peptide
T4
What the class actually does
Both BPC-157 and TB-500 work through angiogenesis. The concern is promotion of occult malignancy or vascular lesions. It is mechanistic, not demonstrated — and it is also NOT EXCLUDED, because there is no long-term human safety data of any kind. Absence of data is not absence of risk. §7, §17
Do not use if
Any history of malignancy, and any undiagnosed lump, lesion or bleeding, until investigated. §11
Measure first
For anyone over 40 or with risk factors: blood pressure, resting ECG, and age-appropriate cancer screening completed and current BEFORE any growth-factor exposure. §11
Stop and seek medical assessment
Any new lump, mass, persistent lymph node, unexplained bleeding or unexplained weight loss. Any new, changing, bleeding or asymmetric mole. New persistent headache, visual change or nausea on waking. Spreading redness, heat, swelling or fever at an injection site. New numbness, tingling or hand weakness. Full stop rules in §11.
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
BPC-157T4
- Status
- Not approved in any major jurisdiction. On FDA's 503A CATEGORY 2 bulk drug substances list, which ended lawful US compounding.
- Warnings
- Mechanism involves angiogenesis and VEGF signalling. The theoretical concern is promotion of occult malignancy or vascular lesions. Mechanistic, not demonstrated — and also not excluded: there is no long-term human safety data of any kind. §11: do not use with any history of malignancy, or any undiagnosed lump, lesion or bleeding, until investigated.
- Anti-doping
- S0. Added to the prohibited list in 2022. PROHIBITED.
Extensive rodent data, largely from ONE group in Zagreb. Went into human trials as PL 14736 for inflammatory bowel disease; the programme did not proceed to approval. NO PUBLISHED HUMAN PK — so even dosing frequency is guesswork. Category 2 is an affirmative safety finding, not merely an absence of approval.
Read the full entry in §7
TB-500 / thymosin β4T4
- Status
- Not approved. Category 2 bulk list.
- Warnings
- Same angiogenesis concern as BPC-157. No long-term human safety data.
- Anti-doping
- S2 — thymosin-β4 is EXPLICITLY NAMED on the prohibited list. PROHIBITED.
TB-500 is a synthetic fragment (the LKKTETQ actin-binding region), NOT full-length thymosin β4, and the two are routinely conflated by vendors. No published human PK.
Read the full entry in §7
GHK-CuT3 topical / T4 systemic
- Status
- Cosmetic ingredient use. Not an approved drug for systemic use.
- Warnings
- Copper load with systemic use is unquantified.
- Anti-doping
- Not listed in the document's table. Verify.
Real evidence for TOPICAL skin effects. Systemic claims are not supported. This is the one place in the document where the topical/systemic distinction carries the whole answer.
Read the full entry in §7
§4, §5 — the GH axis
Build muscle / raise GH and IGF-1
Dosing frequency here is arithmetic downstream of half-life, not a protocol choice — and the market sells two pharmacologically different interventions under nearly the same name. Read the pulsatility point before anything else. Every compound in this class is WADA S2: an athlete in a tested sport who follows the source product's base protocol fails a test.
Ranked by evidence strength, strongest first
-
1
Programmed resistance training, protein adequacy, and sleep — the upstream GH pulse lives in slow-wave sleep
behaviour
T1
-
2
Somatropin, in its defined indications only — NOT approved for anti-ageing or athletic performance anywhere — narrow
drug
T1
-
3
MK-677 — real human data, and the human data is what shows the downside — not a peptide
drug
T2
-
4
Ipamorelin, GHRP-2, GHRP-6, CJC-1295
peptide
T3
-
5
Hexarelin, Mod-GRF(1-29)
peptide
T4
-
6
IGF-1 LR3 — research reagent
peptide
T5
The document corrects this
CJC-1295 WITH DAC has a six-to-eight-day half-life and produces continuous elevation — a 'bleed', not a pulse. 'CJC-1295 without DAC' is a misnomer for Mod-GRF(1-29), which is short-acting and pulsatile. Continuous GPCR stimulation tends toward desensitisation and downregulation. These are different drugs sold under one name. §4
What the class actually does
The feedback point: GHRH analogs and ghrelin-receptor agonists act on the pituitary, so the negative feedback loop through IGF-1 and somatostatin stays intact — there is a ceiling. Exogenous GH and exogenous IGF-1 BYPASS that loop and suppress endogenous production. The claim that peptides 'do not create dependence' is not true across the class. §4
Do not use if
Active or recent malignancy. Active proliferative diabetic retinopathy. Acute critical illness — the 1999 NEJM trial found increased mortality with high-dose GH in ICU patients. Untreated hypothyroidism. Pregnancy and breastfeeding. Benign intracranial hypertension history. Caution in any diabetes or prediabetes: this class worsens insulin sensitivity. §11
Measure first
IGF-1 is essential before anything touching the GH axis, and at every monitoring point thereafter. Fasting glucose and HbA1c on anything metabolic or GH-related. §11
Interactions
GH affects cortisol metabolism via 11β-HSD1 and can unmask previously compensated adrenal insufficiency. It also affects thyroid hormone conversion, which can unmask hypothyroidism. Oral oestrogen reduces the IGF-1 response to GH, so requirements differ. §11
Stop and seek medical assessment
Any new lump, mass, persistent lymph node, unexplained bleeding or unexplained weight loss. Any new, changing, bleeding or asymmetric mole. New persistent headache, visual change or nausea on waking. Spreading redness, heat, swelling or fever at an injection site. New numbness, tingling or hand weakness. Full stop rules in §11.
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
Somatropin (rhGH)T1
- Status
- Defined indications only: paediatric and adult GHD, Turner, SGA, Prader-Willi, short bowel, HIV wasting. NOT approved for anti-ageing or athletic performance in any major jurisdiction.
- Label dose
- Per indication-specific label.
- Warnings
- Arthralgia, myalgia, carpal tunnel, oedema, insulin resistance. In critical illness a landmark 1999 NEJM trial found INCREASED MORTALITY with high-dose GH.
- Anti-doping
- S2. Prohibited.
Bypasses the IGF-1/somatostatin feedback loop and suppresses endogenous production — so the document's claim that peptides 'do not create dependence' is false for this mechanism.
Read the full entry in §5
Mecasermin (rhIGF-1)IncrelexT1
- Status
- Severe primary IGF-1 deficiency.
- Label dose
- Per label.
- Warnings
- Hypoglycaemia warning requiring food intake around dosing; tonsillar hypertrophy; neoplasia considerations.
- Anti-doping
- S2. Prohibited.
Read the full entry in §5
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
IpamorelinT3
- Status
- Not approved. Novo Nordisk development discontinued (post-operative ileus). On FDA's 503A CATEGORY 2 bulk list.
- Warnings
- §11 GH-axis contraindications: active or recent malignancy, active proliferative diabetic retinopathy, acute critical illness, untreated hypothyroidism, pregnancy, benign intracranial hypertension history. Worsens insulin sensitivity.
- Anti-doping
- S2. PROHIBITED.
Relatively selective; less cortisol and prolactin release than GHRP-2/6.
Read the full entry in §5
GHRP-2T3
- Status
- Not approved.
- Warnings
- Raises cortisol and prolactin. Full §11 GH-axis contraindications apply.
- Anti-doping
- S2. PROHIBITED.
Read the full entry in §5
GHRP-6T3
- Status
- Not approved.
- Warnings
- Pronounced appetite stimulation via the ghrelin receptor. Raises cortisol and prolactin.
- Anti-doping
- S2. PROHIBITED.
The appetite effect runs directly against a fat-loss goal.
Read the full entry in §5
HexarelinT4
- Status
- Not approved.
- Warnings
- Full §11 GH-axis contraindications apply.
- Anti-doping
- S2. PROHIBITED.
Most pronounced desensitisation of the group with continued use.
Read the full entry in §5
CJC-1295 with DACT3
- Status
- Not approved anywhere. Development by ConjuChem discontinued.
- Warnings
- A death occurred in an early clinical programme; the causal relationship was disputed. §19 item 9 flags this as a recollection that may be wrong — VERIFY against primary sources.
- Anti-doping
- S2. PROHIBITED.
Its six-to-eight-day albumin-bound half-life produces CONTINUOUS elevation, not a pulse. Continuous stimulation of a G-protein-coupled receptor tends toward desensitisation and downregulation. Pharmacologically a different intervention from 'CJC-1295 no DAC', which the market sells under nearly the same name.
Read the full entry in §5
Mod-GRF(1-29)T4
- Status
- Not approved. Sold as 'CJC-1295 without DAC', which is a misnomer.
- Anti-doping
- S2. PROHIBITED.
Short half-life (~30 min), pulsatile.
Read the full entry in §5
MK-677 / ibutamorenT2
- Status
- NOT A PEPTIDE — an orally active small-molecule ghrelin receptor agonist. Not approved; development discontinued.
- Warnings
- Consistently: increased appetite, oedema, WORSENED INSULIN SENSITIVITY and raised fasting glucose. A trial in elderly hip-fracture patients was notable for adverse events.
- Anti-doping
- S2. PROHIBITED.
Real human trial data exists — this is T2, unusually strong for an unapproved compound, and the human data is what shows the downside. Consistently raises IGF-1.
Read the full entry in §5
IGF-1 LR3T5
- Status
- Not a pharmaceutical. A research reagent.
- Warnings
- HYPOGLYCAEMIA is the acute hazard. Modified to reduce IGFBP binding, dramatically extending free-IGF-1 exposure.
- Anti-doping
- S2. PROHIBITED.
Bypasses the feedback loop and suppresses endogenous production.
Read the full entry in §5
§5, §15 Pillar 1
Reduce visceral fat specifically
This is the single narrow indication in the document where a GH-axis peptide has full T1 approval — and it is licensed only for HIV-associated lipodystrophy. Its label is the best available guide to what the mechanism does to a human body over a year, including the part performance marketing omits: glucose tolerance worsens in a meaningful fraction of patients.
Ranked by evidence strength, strongest first
-
1
Energy balance and fat mass reduction, particularly visceral
behaviour
T1
-
2
Resistance training plus aerobic training
behaviour
T1
-
3
Sleep extension to 7–9 hours
behaviour
T1
-
4
Dietary quality: fibre, protein adequacy, alcohol reduction
behaviour
T1
-
5
GLP-1 / GIP-GLP-1 agonists
drug
T1
-
6
Tesamorelin — in its licensed population — T1 narrow
drug
T1
What the class actually does
Tesamorelin raises IGF-1 and worsens glucose tolerance — on its own label. §5
Do not use if
Full GH-axis contraindications. §11
Measure first
IGF-1 at baseline and every monitoring point. Fasting glucose and HbA1c. §11
Approved, and indicated for this
These have a label, a dose that is public prescribing information, and a regulator behind them.
SemaglutideOzempic / Wegovy / RybelsusT1
- Status
- Type 2 diabetes (Ozempic); chronic weight management (Wegovy); T2D oral (Rybelsus)
- Label dose
- Wegovy: titrate over 16+ weeks to 2.4 mg weekly. Ozempic: 0.25 mg weekly ×4 wks, then 0.5, 1.0, up to 2.0 mg weekly. Rybelsus: 3/7/14 mg daily, fasted, with ≤120 mL water.
- Warnings
- Boxed warning: thyroid C-cell tumours in rodents. Contraindicated with personal or family history of medullary thyroid carcinoma or MEN2.
- Anti-doping
- Not on the prohibited list as of this document's knowledge — but weight-class sports and individual federations may have their own rules.
Rybelsus delivers roughly 1% bioavailability via the SNAC absorption enhancer. The 2023 SELECT trial showed cardiovascular benefit in people with obesity and established cardiovascular disease without diabetes.
Read the full entry in §6
TirzepatideMounjaro / ZepboundT1
- Status
- Type 2 diabetes / obesity
- Label dose
- 2.5 mg weekly start, titrate to max 15 mg weekly.
- Warnings
- Same boxed warning as the GLP-1 class: thyroid C-cell tumours in rodents, MTC/MEN2 contraindication.
- Anti-doping
- Not on the prohibited list as of this document's knowledge.
Dual GIP/GLP-1 agonist.
Read the full entry in §6
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
TesamorelinEgriftaT1 narrow
- Status
- The ONLY approved indication is reduction of excess visceral adipose tissue in HIV-associated lipodystrophy.
- Label dose
- 2 mg SC daily (label).
- Warnings
- Label warnings: raises IGF-1, glucose intolerance and new-onset diabetes, injection site reactions, neoplasm considerations, hypersensitivity.
- Anti-doping
- S2 — peptide hormones, growth factors and mimetics. Prohibited.
The proof that a GHRH analog can clear a full regulatory pathway, and the best available guide to what the mechanism does over a year: visceral fat falls, IGF-1 rises, glucose tolerance worsens in a meaningful fraction of patients. That last item is routinely omitted from performance marketing.
Read the full entry in §5
Tested in humans, and failed
A compound with a failed adequately-powered trial has stronger evidence AGAINST it than one with no trial at all.
AOD-9604T2 NEGATIVE
- Status
- hGH fragment 176-191. Not approved as a drug.
- Anti-doping
- Covered by S0/S2 logic. Verify.
Metabolic Pharmaceuticals ran human obesity trials. The Phase 2b FAILED TO SEPARATE FROM PLACEBO on weight loss. A compound with a failed adequately-powered human trial has stronger evidence AGAINST it than a compound with no trial at all. The source excerpt asserts it 'directs fat burning'.
Read the full entry in §5
§8 — melanocortin
Libido and sexual function
There is a genuinely approved T1 option here, with a real label and a hard cardiovascular contraindication — and there is a T6 grey-market compound in the same receptor family that the document includes specifically as the cautionary case for the class.
Ranked by evidence strength, strongest first
-
1
Bremelanotide — approved, for hypoactive sexual desire disorder in premenopausal women — narrow indication
drug
T1
-
2
Melanotan II — licenses you to say nothing
peptide
T6
What the class actually does
Melanocortins: bremelanotide produces a transient blood pressure increase and heart rate decrease, and causes nausea in roughly 40% of patients. Focal hyperpigmentation occurs with repeated use. §8
Do not use if
Uncontrolled hypertension or known cardiovascular disease — bremelanotide label. Personal or family history of melanoma, or numerous or atypical naevi. §11
Interactions
Bremelanotide should not be combined with substances that raise blood pressure, given its transient pressor effect. §11
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
Bremelanotide (PT-141)VyleesiT1
- Status
- Hypoactive sexual desire disorder in premenopausal women. Approved 2019.
- Label dose
- 1.75 mg SC by autoinjector, as needed. Maximum one dose per 24 hours and 8 per month.
- Warnings
- Nausea in roughly 40% of patients. Transient blood pressure increase and heart rate decrease — CONTRAINDICATED in uncontrolled hypertension or known cardiovascular disease. Focal hyperpigmentation with repeated use.
- Anti-doping
- Not listed in the document's anti-doping table. Verify.
Read the full entry in §8
Runs against this goal
Either the mechanism works the wrong way for what you asked, or the source material has it inverted.
Melanotan IIT6
- Status
- NOT APPROVED ANYWHERE. Widely sold grey-market.
- Warnings
- Case reports of NEW AND CHANGING MELANOCYTIC NAEVI, and case reports of MELANOMA in users. Also rhabdomyolysis and priapism reports. §11: contraindicated with personal or family history of melanoma, or numerous/atypical naevi.
- Anti-doping
- Covered by S0 logic. Verify.
T6 is the bottom of the scale — case reports, clinic anecdote, forum consensus and vendor copy, which licenses you to say NOTHING. Included in the document specifically as the cautionary case for this class.
Read the full entry in §8
§8 — neuro / cognitive
Cognition, focus and mood
The two most-cited compounds here are registered medicines — in Russia — with a predominantly Russian-language, single-jurisdiction evidence base. That is T3, not nothing, but it is not what 'clinically proven' implies. The preparation with the widest registration has had unfavourable or inconclusive Cochrane reviews.
Ranked by evidence strength, strongest first
-
1
Sleep — restriction measurably degrades cognition and the studies are randomised human designs — §15 Pillar 3
behaviour
T1
-
2
Semax, Selank — registered in Russia only
peptide
T3
-
3
Cerebrolysin — registered in several countries, Cochrane unfavourable or inconclusive — contested
drug
T2
-
4
Dihexa — preclinical only
peptide
T4
The document corrects this
Intranasal oxytocin for social and behavioural effects has a large but POORLY REPLICATING literature. The approved obstetric use is T1; the behavioural claim is T3. §8
What the class actually does
Dihexa's potent neurotrophic activity in models means the growth-promotion concern applies to it as it does to BPC-157 and TB-500. §8, §11
Do not use if
Any history of malignancy, and any undiagnosed lump, lesion or bleeding, for the growth-factor group. §11
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
SemaxT3
- Status
- Registered as a medicine in RUSSIA for stroke and cognitive indications. Not approved in the US, EU, UK, AU or NZ.
- Anti-doping
- Not listed in the document's table. Verify.
ACTH(4-10) analog with a Pro-Gly-Pro tail. Evidence base predominantly Russian-language.
Read the full entry in §8
SelankT3
- Status
- Registered in RUSSIA as an anxiolytic.
- Anti-doping
- Not listed in the document's table. Verify.
Tuftsin analog. Same evidence-base caveat.
Read the full entry in §8
CerebrolysinT2, contested
- Status
- Registered in a number of countries.
- Anti-doping
- Not listed in the document's table. Verify.
Porcine brain-derived peptide preparation. Cochrane reviews of its use in stroke and dementia have been UNFAVOURABLE or inconclusive.
Read the full entry in §8
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
DihexaT4
- Status
- Not approved.
- Warnings
- Potent neurotrophic activity in models means the GROWTH-PROMOTION concern applies. §11 groups it with BPC-157 and TB-500: any history of malignancy, any undiagnosed lump, lesion or bleeding, until investigated.
- Anti-doping
- Covered by S0 logic. Verify.
Angiotensin IV analog, hepatocyte growth factor pathway. Preclinical only.
Read the full entry in §8
OxytocinT1 obstetric / T3 behavioural
- Status
- Obstetric indications, IV.
- Label dose
- Per label.
- Anti-doping
- Not listed in the document's table. Verify.
Intranasal oxytocin for social and behavioural effects has a large but POORLY REPLICATING literature. The approved use and the behavioural claim are not the same evidence.
Read the full entry in §8
§8 — Khavinson bioregulators
Longevity and anti-ageing
The bioregulator concept — that very short peptides act as regulatory signals on gene expression rather than as substrates — is a legitimate hypothesis with real mechanistic proposals behind it. What it does not have is the independent, multi-centre, long-horizon human evidence the marketing implies. A large share of this literature comes from one group in St Petersburg, and independent replication is thin.
Ranked by evidence strength, strongest first
-
1
The four T1 behavioural interventions — they are the only things in this document with outcome data at a population scale — §15
behaviour
T1
-
2
Epitalon, Vilon, Pinealon — single-group, largely in vitro
peptide
T4
The document corrects this
'Epitalon changed longevity medicine permanently' is not a supportable sentence. Telomerase claims are single-group, largely in vitro, without robust independent replication. §16 erratum 16
What the class actually does
Long-term human data is absent for every compound in this group. Half-lives are not characterised — epitalon's is inferred in minutes — so dosing frequency has no pharmacological basis. §4, §8
Do not use if
Pregnancy, breastfeeding and under-18s: no safety data exists for any unapproved compound. §11
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
EpitalonT4/T5
- Status
- Ala-Glu-Asp-Gly. Not approved outside Russia. On FDA's 503A CATEGORY 2 bulk list.
- Warnings
- Long-term human data absent.
- Anti-doping
- S0. PROHIBITED.
Telomerase activation claims originate from Khavinson's own group, largely in cell culture and small Russian studies. Independent replication is thin. Half-life not characterised. 'This changed longevity medicine permanently' is not a supportable sentence.
Read the full entry in §8
VilonT4
- Status
- Lys-Glu. Not approved outside Russia.
- Anti-doping
- Covered by S0 logic. Verify.
Read the full entry in §8
PinealonT4/T5
- Status
- Glu-Asp-Arg. Not approved outside Russia.
- Anti-doping
- Covered by S0 logic. Verify.
Read the full entry in §8
HumaninT4
- Status
- Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
Mitochondrial-derived, cytoprotective and neuroprotective in models.
Read the full entry in §6
§8 — immune
Immune support
There is one genuinely well-evidenced option here, approved in a number of countries. There is also a compound the source material describes as an anti-inflammatory that is, in several contexts, the opposite — and that inversion is a real contraindication signal rather than a nuance.
Ranked by evidence strength, strongest first
-
1
Thymosin alpha-1 — approved in a number of countries for hepatitis B and as a vaccine adjuvant
drug
T2
-
2
Thymalin — single-group, Russian-language
peptide
T3
-
3
LL-37 — see the correction
peptide
T4
The document corrects this
LL-37 is a dual-function molecule. It is antimicrobial, but it is also strongly PRO-inflammatory in several contexts and is mechanistically implicated in the pathology of psoriasis, rosacea and lupus, where it complexes with self-DNA to activate plasmacytoid dendritic cells and drive interferon responses. The source excerpt frames it as an anti-inflammatory, which inverts a genuine contraindication. §8, §16 erratum 9
Do not use if
Autoimmune disease. Solid organ transplant or any immunosuppression. LL-37 specifically: psoriasis, rosacea, lupus. §11
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
Thymosin alpha-1 (thymalfasin)T2
- Status
- Approved in a number of countries (not the US) for hepatitis B and as a vaccine adjuvant.
- Label dose
- Per the approving jurisdiction's label.
- Anti-doping
- Not listed in the document's table. Verify.
The best-evidenced immune peptide in the document.
Read the full entry in §8
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
ThymalinT3/T4
- Status
- Russian-registered thymic peptide preparation.
- Anti-doping
- Not listed in the document's table. Verify.
Evidence base largely Russian-language, single-group.
Read the full entry in §8
Runs against this goal
Either the mechanism works the wrong way for what you asked, or the source material has it inverted.
LL-37T4
- Status
- Not approved.
- Warnings
- CONTRAINDICATED in psoriasis, rosacea and lupus. §11 also lists autoimmune disease, transplant and immunosuppression for immune modulators.
- Anti-doping
- Covered by S0 logic. Verify.
THE SOURCE EXCERPT INVERTS THIS. LL-37 is a dual-function human cathelicidin: antimicrobial, but also strongly PRO-inflammatory in several contexts and mechanistically implicated in the pathology of psoriasis, rosacea and lupus, where it complexes with self-DNA to activate plasmacytoid dendritic cells and drive interferon responses. Using it as an anti-inflammatory is a genuine contraindication signal the source material reverses.
Read the full entry in §8
§7 — repair and regenerative
Gut health and intestinal permeability
The most rigorously tested intervention for intestinal permeability reached Phase 3 and missed its primary endpoint. That is the single most relevant fact for any protocol built on the leaky-gut framing, and it is stronger evidence against than the untested compounds have for.
Ranked by evidence strength, strongest first
-
1
Dietary quality: fibre, protein adequacy, alcohol reduction — §15
behaviour
T1
-
2
Larazotide — Phase 3 MISSED its primary endpoint — negative
drug
T2
-
3
BPC-157, KPV — rodent
peptide
T4
What the class actually does
BPC-157 went into human trials as PL 14736 for inflammatory bowel disease; the programme did not proceed to approval. Status and sponsor are §19 item 10 — unverified. §7
Do not use if
Any history of malignancy, and any undiagnosed lump, lesion or bleeding, until investigated. §11
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
TeduglutideGattexT1
- Status
- Short bowel syndrome.
- Label dose
- Per label.
- Warnings
- Colorectal polyp surveillance required per label.
- Anti-doping
- Not listed. Verify.
GLP-2 analog.
Read the full entry in §6
Tested in humans, and failed
A compound with a failed adequately-powered trial has stronger evidence AGAINST it than one with no trial at all.
LarazotideT2 NEGATIVE
- Status
- Not approved. Phase 3 in coeliac disease did not meet its primary endpoint.
- Anti-doping
- Not listed. Verify.
Tight-junction regulator — the most rigorously tested 'leaky gut' intervention, and it FAILED. Relevant to any protocol built on intestinal permeability.
Read the full entry in §7
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
BPC-157T4
- Status
- Not approved in any major jurisdiction. On FDA's 503A CATEGORY 2 bulk drug substances list, which ended lawful US compounding.
- Warnings
- Mechanism involves angiogenesis and VEGF signalling. The theoretical concern is promotion of occult malignancy or vascular lesions. Mechanistic, not demonstrated — and also not excluded: there is no long-term human safety data of any kind. §11: do not use with any history of malignancy, or any undiagnosed lump, lesion or bleeding, until investigated.
- Anti-doping
- S0. Added to the prohibited list in 2022. PROHIBITED.
Extensive rodent data, largely from ONE group in Zagreb. Went into human trials as PL 14736 for inflammatory bowel disease; the programme did not proceed to approval. NO PUBLISHED HUMAN PK — so even dosing frequency is guesswork. Category 2 is an affirmative safety finding, not merely an absence of approval.
Read the full entry in §7
KPVT4
- Status
- Not approved. CATEGORY 2 bulk list.
- Warnings
- Not characterised in humans.
- Anti-doping
- S0. PROHIBITED.
Lys-Pro-Val, the C-terminal tripeptide of α-MSH. Anti-inflammatory via melanocortin receptor signalling in models, mostly gut and skin.
Read the full entry in §7
§7, §8
Skin, hair and cosmetic
This is the one goal in the document where the route carries the entire answer. There is real evidence for a topical effect and no support for the systemic claims made about the same molecule. Separately, the tanning compound in this category is the document's designated cautionary case.
Ranked by evidence strength, strongest first
-
1
GHK-Cu, topical
peptide
T3
-
2
GHK-Cu, systemic — claims not supported
peptide
T4
-
3
Melanotan II — melanoma case reports
peptide
T6
The document corrects this
GHK-Cu has real evidence for TOPICAL skin effects. Systemic claims are not supported, and the copper load with systemic use is unquantified. §7
What the class actually does
Melanotan II has case reports of new and changing melanocytic naevi, case reports of melanoma in users, and reports of rhabdomyolysis and priapism. §8
Do not use if
Personal or family history of melanoma, or numerous or atypical naevi. §11
Approved — but read the indication
Approved does not mean approved for you. The licensed population is narrower than the marketing.
AfamelanotideScenesseT1
- Status
- Erythropoietic protoporphyria. Narrow indication, implant.
- Label dose
- Implant, per label.
- Anti-doping
- Not listed in the document's table. Verify.
Read the full entry in §8
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
GHK-CuT3 topical / T4 systemic
- Status
- Cosmetic ingredient use. Not an approved drug for systemic use.
- Warnings
- Copper load with systemic use is unquantified.
- Anti-doping
- Not listed in the document's table. Verify.
Real evidence for TOPICAL skin effects. Systemic claims are not supported. This is the one place in the document where the topical/systemic distinction carries the whole answer.
Read the full entry in §7
KPVT4
- Status
- Not approved. CATEGORY 2 bulk list.
- Warnings
- Not characterised in humans.
- Anti-doping
- S0. PROHIBITED.
Lys-Pro-Val, the C-terminal tripeptide of α-MSH. Anti-inflammatory via melanocortin receptor signalling in models, mostly gut and skin.
Read the full entry in §7
Runs against this goal
Either the mechanism works the wrong way for what you asked, or the source material has it inverted.
Melanotan IIT6
- Status
- NOT APPROVED ANYWHERE. Widely sold grey-market.
- Warnings
- Case reports of NEW AND CHANGING MELANOCYTIC NAEVI, and case reports of MELANOMA in users. Also rhabdomyolysis and priapism reports. §11: contraindicated with personal or family history of melanoma, or numerous/atypical naevi.
- Anti-doping
- Covered by S0 logic. Verify.
T6 is the bottom of the scale — case reports, clinic anecdote, forum consensus and vendor copy, which licenses you to say NOTHING. Included in the document specifically as the cautionary case for this class.
Read the full entry in §8
§6, §7
Mitochondrial function and energy
The compound with the most serious clinical programme in this space missed its primary endpoint in mitochondrial myopathy, and its regulatory history is contested. The compound with the best marketing line is rodent-only, and 'exercise in a syringe' is a researcher's metaphor for a mouse finding.
Ranked by evidence strength, strongest first
-
1
Exercise — muscle contraction activates the AMPK-linked pathway these compounds are marketed for — §15
behaviour
T1
-
2
Elamipretide (SS-31) — MMPOWER-3 missed its primary endpoint — mixed
drug
T2
-
3
MOTS-c, Humanin — rodent
peptide
T4
The document corrects this
The document's erratum 14: 'mitochondrial decline of 10–15% by age 30–40' has no source given, and the underlying literature is heterogeneous and not that precise. §16
What the class actually does
Elamipretide's approval status may have changed since this document was written — §19 item 2. Verify before relying on anything here. §7
Do not use if
Pregnancy, breastfeeding and under-18s: no safety data exists for any unapproved compound. §11
Tested in humans, and failed
A compound with a failed adequately-powered trial has stronger evidence AGAINST it than one with no trial at all.
Elamipretide (SS-31)T2, mixed
- Status
- Trials in Barth syndrome (TAZPOWER), primary mitochondrial myopathy (MMPOWER-3), dry AMD, LHON.
- Anti-doping
- Covered by S0 logic for non-approved substances. Verify.
Cardiolipin-binding tetrapeptide. MMPOWER-3 MISSED ITS PRIMARY ENDPOINT. The Barth programme went through an FDA advisory committee with a narrow vote and subsequent regulatory back-and-forth. Approval status may have changed — §19 item 2. Presenting it as an available performance tool overstates a programme with a mixed trial record.
Read the full entry in §7
Marketed for this, but thin
No approval. Tier says how much to believe it. No dose is given here because the evidence to build one honestly does not exist.
MOTS-cT4
- Status
- Not approved.
- Warnings
- No human safety data.
- Anti-doping
- S0, and S4 by the AMPK-activator logic (AICAR is explicitly listed). PROHIBITED.
Mitochondrial-derived peptide. Improves insulin sensitivity and metabolic flexibility IN MICE. Human data are minimal, no published human PK. 'Exercise in a syringe' is a researcher's metaphor for a rodent finding, presented to buyers as a product claim.
Read the full entry in §6
HumaninT4
- Status
- Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
Mitochondrial-derived, cytoprotective and neuroprotective in models.
Read the full entry in §6
5-Amino-1MQT4
- Status
- NOT A PEPTIDE — a methylquinolinium small molecule, an NNMT inhibitor. Not approved.
- Anti-doping
- Covered by S0 logic. Verify.
Rodent-level evidence for fat mass reduction. Raises intracellular NAD+ in preclinical models.
Read the full entry in §6
Status: v1-DRAFT. Written 2026-09-03. Numbers and regulatory statuses in this document are AI-synthesised from model knowledge and have not been checked against primary sources. Every item in the Verification Queue (§19) must be confirmed against the cited authority before any of this is published, sold, or acted on.
Purpose. This is the reference layer that the "Prime Peptides" product excerpt does not contain: pharmacology, regulatory status, anti-doping status, evidence tiers, safety architecture, sourcing quality, handling, and protocol design logic. It also corrects the factual errors in that excerpt (§16).
What this document is not. It is not medical advice, and it is not a self-administration manual. Where a compound has an approved label, the label dose is given, because that is public prescribing information. Where a compound has no approval, this document says so and describes what the literature actually used, including the species. It does not construct dosing protocols for unapproved injectables, because there is no evidence base from which to construct one honestly.
§1
How to read a peptide claim — the evidence tiers
T11T21T31T41T51T61
Almost every dispute about peptides is a tier confusion. A mechanism shown in a cell line gets quoted as though it were a clinical outcome. Assign a tier before you assign belief.
| Tier | What it means | What it licenses you to say |
|---|
| T1 | Multiple large randomised controlled trials in humans, plus regulatory approval | "This causes that, at this dose, with these risks" |
| T2 | One or more adequately powered human RCTs, no approval, or approval in one narrow indication only | "This has been shown to do that in this population" |
| T3 | Small human trials, open-label, uncontrolled, or single-centre | "Early human signal, effect size unreliable" |
| T4 | Animal studies only | "A mechanism exists in rodents" |
| T5 | In vitro, ex vivo, or computational only | "A molecular interaction exists" |
| T6 | Case reports, clinic anecdote, forum consensus, vendor copy | Nothing |
Two structural warnings that apply across this whole field:
- Single-group corpora. A large share of BPC-157 literature comes from one research group in Zagreb, and a large share of the bioregulator literature from one group in St Petersburg. Independent replication is what converts a finding from "a group believes this" to "this is known." For both, independent replication is thin.
- Rodent-to-human is not a scaling problem, it is a translation problem. Allometric dose conversion tells you nothing about whether the effect exists in humans at all. Most drugs that work in rodents fail in humans.
§2
What a peptide is, and what keeps getting miscategorised
no tiers cited
A peptide is a chain of amino acids linked by peptide bonds. The conventional cut-off is roughly 2 to 50 residues; longer chains are called proteins. Peptides sit between small molecules and biologics: too large to reliably cross membranes or survive the gut, small enough to be chemically synthesised rather than grown in cells.
Three consequences follow, and they explain most of the practical constraints:
- They are digested. Oral peptides are broken into amino acids by gastric and pancreatic proteases. Getting one orally active requires either heavy modification, a permeation enhancer, or both. Oral semaglutide (Rybelsus) uses the absorption enhancer SNAC and still delivers roughly 1% bioavailability.
- They are cleared fast. Native peptides have plasma half-lives measured in minutes. Every long-acting peptide drug achieves it through engineering: fatty-acid acylation for albumin binding (semaglutide), a maleimide that covalently binds albumin (CJC-1295 with DAC), D-amino acid substitution, or PEGylation.
- They are immunogenic in principle. Anti-drug antibodies are a real phenomenon for peptide therapeutics and are assessed in registration trials. They are not assessed at all for grey-market compounds.
Category errors to stop repeating. The source excerpt and its sales page list several things as peptides that are not peptides:
| Listed as a peptide | What it actually is |
|---|
| NAD+ | A dinucleotide coenzyme. Not an amino acid chain. |
| 5-Amino-1MQ | A methylquinolinium small molecule, an NNMT inhibitor. |
| MK-677 / ibutamoren | A non-peptide small-molecule ghrelin receptor agonist. |
| Endorphins / Substance P | Genuinely peptides, but endogenous signalling molecules, not therapeutics you administer. |
This matters beyond pedantry. A buyer who believes NAD+ is a peptide will apply peptide handling, peptide sourcing logic, and peptide risk assumptions to a molecule that shares none of them.
§3
Corrected history
no tiers cited
The excerpt's chronology contains several errors. Here is the corrected version.
The hypothalamic releasing factors. Roger Guillemin and Andrew Schally independently isolated and characterised the hypothalamic releasing hormones across roughly 1969 to 1973, working from enormous quantities of animal hypothalami. Thyrotropin-releasing hormone (TRH, 3 residues) was characterised in 1969. Gonadotropin-releasing hormone (GnRH, 10 residues) followed in 1971. Somatostatin (14 residues) was isolated by Guillemin's group in 1973.
They shared the 1977 Nobel Prize in Physiology or Medicine with Rosalyn Yalow, who was recognised separately for developing radioimmunoassay. The excerpt gives 1975 for the isolation and appears to conflate the two dates.
The "four neuropeptides of up to 14 amino acids" claim is not sustainable. Three of the classical hypothalamic peptides fit that description. The other two canonical members do not: corticotropin-releasing hormone (CRH), characterised by Wylie Vale's group in 1981, is 41 residues; growth hormone-releasing hormone (GHRH), characterised in 1982, is 44 residues.
Endogenous opioids. John Hughes and Hans Kosterlitz identified the enkephalins in 1975 and published in Nature. The excerpt has this right.
Candace Pert. Pert identified the opiate receptor with Solomon Snyder in 1973, as a graduate student, using radioligand binding. Her work extending neuropeptide receptor mapping into immune cells came later, through the 1980s. The 1985 paper often cited here is "Neuropeptides and their receptors: a psychosomatic network" in the Journal of Immunology. "Molecules of Emotion" is the title of her 1997 popular book, not a term coined in 1985.
BPC-157 does not belong in a 1980-1990 section. It is a synthetic 15-residue sequence derived from a fragment of a protein found in human gastric juice, developed by Predrag Sikirić and colleagues at the University of Zagreb. The published work begins in the early-to-mid 1990s, not the 1980s.
Mitochondrial-derived peptides. Humanin, a 24-residue peptide encoded in the mitochondrial 16S rRNA region, was reported in 2001 in the context of protection against amyloid-beta toxicity. MOTS-c, a 16-residue peptide encoded in the 12S rRNA region, was reported in 2015 in Cell Metabolism by Lee, Cohen and colleagues. The excerpt's 2015 date for MOTS-c is correct.
Dosing frequency is not a preference, a tradition, or a protocol design choice. It is arithmetic downstream of half-life. A compound with a 30-minute half-life administered once daily is present at meaningful concentration for well under an hour out of 24. Any protocol that ignores this is describing a ritual, not a pharmacological exposure.
| Compound | Approximate half-life | Route | Confidence |
|---|
| TRH | ~5 min | IV | High |
| GnRH | 2–4 min | IV | High |
| Oxytocin | 1–6 min | IV/IN | High |
| Sermorelin (GHRH 1-29) | ~10–20 min | SC | High |
| Mod-GRF(1-29), sold as "CJC-1295 no DAC" | ~30 min | SC | Medium |
| Tesamorelin | ~26–38 min | SC | High |
| GHRP-6 | ~15–20 min | SC | Medium |
| GHRP-2 | ~30–60 min | SC | Medium |
| Hexarelin | ~55 min | SC | Medium |
| Ipamorelin | ~2 h | SC | Medium |
| Somatropin (rhGH) | ~2–3 h apparent | SC | High |
| Bremelanotide (PT-141) | ~2.7 h | SC | High |
| Elamipretide (SS-31) | ~2–3 h | SC | Verify |
| Mecasermin (rhIGF-1) | ~5–6 h bound; free IGF-1 ~10 min | SC | High |
| Liraglutide | ~13 h | SC | High |
| Tirzepatide | ~5 days | SC | High |
| Semaglutide | ~7 days | SC | High |
| CJC-1295 with DAC | ~6–8 days | SC | Medium |
| BPC-157 | Not characterised in humans | — | No human PK published |
| TB-500 / thymosin β4 | Not characterised in humans | — | No human PK published |
| MOTS-c | Short; not characterised in humans | — | No human PK published |
| Epitalon | Minutes (inferred) | — | Not characterised |
The pulsatility point. Endogenous growth hormone is released in pulses, concentrated in early slow-wave sleep. The GH axis is regulated by that pulse pattern, and somatostatin tone between pulses is part of the signal. A short-acting GHRH analog produces a pulse. CJC-1295 with DAC does not — its six-to-eight-day albumin-bound half-life produces a continuous elevation, often called a "bleed." These are pharmacologically different interventions that the market sells under nearly the same name. Continuous stimulation of a G-protein-coupled receptor tends toward desensitisation and downregulation.
The feedback point. GHRH analogs and ghrelin-receptor agonists act on the pituitary, so the negative feedback loop through IGF-1 and somatostatin stays intact — there is a ceiling. Exogenous GH and exogenous IGF-1 bypass that loop and suppress endogenous production. The excerpt's claim that peptides "do not create dependence" is not true across the class; it is true for some mechanisms and false for others.
GHRH analogs
| Compound | Class | Status | Evidence | Notes |
|---|
| Sermorelin | GHRH(1-29) | Was FDA-approved as Geref for paediatric GHD; withdrawn from market 2008 for commercial reasons, not safety | T1 historical | Precedent that this class can be approved. Now supplied via compounding in some jurisdictions. |
| Tesamorelin | Stabilised GHRH analog | FDA-approved (Egrifta) 2010 | T1 | Only approved indication is reduction of excess visceral adipose tissue in HIV-associated lipodystrophy. Label dose 2 mg SC daily. Label warnings: raises IGF-1, glucose intolerance and new-onset diabetes, injection site reactions, neoplasm considerations, hypersensitivity. |
| CJC-1295 with DAC | GHRH analog with albumin-binding maleimide | Not approved anywhere. Development by ConjuChem discontinued | T3 | Long half-life produces continuous rather than pulsatile GH elevation. A death occurred in an early clinical program; the causal relationship was disputed. Verify this before publishing. |
| Mod-GRF(1-29) | GHRH(1-29) with 4 substitutions | Not approved. Sold as "CJC-1295 without DAC," which is a misnomer | T4/T5 | Short half-life, pulsatile. |
Tesamorelin is the important entry here. It is the proof that a GHRH analog can clear a full regulatory pathway, and its label is the best available guide to what this mechanism actually does to a human body over a year: visceral fat falls, IGF-1 rises, glucose tolerance worsens in a meaningful fraction of patients. That last item is routinely omitted from performance marketing.
Ghrelin receptor agonists (GHRPs and secretagogues)
| Compound | Status | Evidence | Notes |
|---|
| Ipamorelin | Not approved. Novo Nordisk development discontinued (post-operative ileus) | T3 | Relatively selective; less cortisol and prolactin release than GHRP-2/6. On FDA's 503A category 2 bulk list. |
| GHRP-2 | Not approved | T3/T4 | Raises cortisol and prolactin. |
| GHRP-6 | Not approved | T3/T4 | Pronounced appetite stimulation via ghrelin receptor. Raises cortisol and prolactin. |
| Hexarelin | Not approved | T4 | Most pronounced desensitisation of the group with continued use. |
| MK-677 / ibutamoren | Not a peptide. Orally active small molecule. Not approved; development discontinued | T2 | Real human trial data exists. Consistently raises IGF-1. Also consistently: increased appetite, oedema, worsened insulin sensitivity and raised fasting glucose. A trial in elderly hip-fracture patients was notable for adverse events. |
GH and IGF-1
| Compound | Status | Evidence | Notes |
|---|
| Somatropin (rhGH) | Approved for defined indications (paediatric and adult GHD, Turner, SGA, Prader-Willi, short bowel, HIV wasting) | T1 | Not approved for anti-ageing or athletic performance in any major jurisdiction. Adverse effects: arthralgia, myalgia, carpal tunnel, oedema, insulin resistance, and in critical illness a landmark 1999 NEJM trial found increased mortality with high-dose GH. |
| Mecasermin (rhIGF-1, Increlex) | FDA-approved for severe primary IGF-1 deficiency | T1 | Label carries hypoglycaemia warning requiring food intake around dosing, tonsillar hypertrophy, and neoplasia considerations. |
| IGF-1 LR3 | Not a pharmaceutical. Research reagent | T5 | Modified to reduce IGFBP binding, dramatically extending free-IGF-1 exposure. Hypoglycaemia risk is the acute hazard. |
Fat-loss fragment
| Compound | Status | Evidence | Notes |
|---|
| AOD-9604 | hGH fragment 176-191. Not approved as a drug | T2 negative | Metabolic Pharmaceuticals ran human obesity trials. The Phase 2b failed to separate from placebo on weight loss. This is the single most important fact about AOD-9604 and it is absent from the source excerpt, which asserts it "directs fat burning." A compound with a failed adequately-powered human trial has stronger evidence against it than a compound with no trial at all. |
§6
Compound reference — incretin and metabolic
T11T21T43T511 unverified
This is the only part of the field with T1 evidence at scale, and it is worth being precise about, because it is where the honest sales argument actually lives.
| Compound | Brand | Approved for | Dosing per label | Key label warnings |
|---|
| Semaglutide | Ozempic | Type 2 diabetes | 0.25 mg weekly ×4 wks, then 0.5, 1.0, up to 2.0 mg weekly | Boxed warning: thyroid C-cell tumours in rodents. Contraindicated with personal/family history of medullary thyroid carcinoma or MEN2. |
| Wegovy | Chronic weight management | Titrate over 16+ wks to 2.4 mg weekly | Same boxed warning. |
| Rybelsus | Type 2 diabetes, oral | 3 mg, 7 mg, 14 mg daily, fasted, with ≤120 mL water | Same. ~1% bioavailability via SNAC enhancer. |
| Liraglutide | Victoza / Saxenda | T2D / obesity | Daily SC | Same class warnings. |
| Tirzepatide | Mounjaro / Zepbound | T2D / obesity | 2.5 mg weekly start, titrate to max 15 mg weekly | Dual GIP/GLP-1 agonist. Same boxed warning. |
| Teduglutide | Gattex | Short bowel syndrome | — | GLP-2 analog. Approved. Colorectal polyp surveillance required per label. |
| Setmelanotide | Imcivree | Obesity from specific genetic deficiencies (POMC, PCSK1, LEPR, BBS) | — | Melanocortin-4 agonist. Approved, narrow genetic indication. |
Class-wide adverse effects across GLP-1 and GIP/GLP-1 agonists: nausea, vomiting, diarrhoea, constipation; gallbladder disease and cholelithiasis; pancreatitis signal; gastroparesis and delayed gastric emptying, which has produced anaesthesia aspiration guidance from anaesthesiology societies; diabetic retinopathy progression signal seen with rapid HbA1c reduction; substantial loss of lean mass alongside fat mass; weight regain on discontinuation, demonstrated in the STEP 4 withdrawal design. The 2023 SELECT trial showed cardiovascular benefit with semaglutide in people with obesity and established cardiovascular disease without diabetes.
Investigational, not approved: retatrutide (triple GIP/GLP-1/glucagon agonist), survodutide, cagrilintide and the cagrilintide/semaglutide combination. These have T2 trial data but no approval as of this document's date. Verify current approval status before publishing.
| Compound | Status | Evidence | Notes |
|---|
| MOTS-c | Not approved | T4 | Mitochondrial-derived peptide. Activates AMPK, apparently via the folate–methionine cycle and AICAR accumulation. Improves insulin sensitivity and metabolic flexibility in mice. Human data are minimal. The excerpt's phrase "exercise in a syringe" is a researcher's metaphor for a rodent finding, presented to buyers as a product claim. |
| 5-Amino-1MQ | Not a peptide. Not approved | T4 | NNMT inhibitor, raises intracellular NAD+ in preclinical models. Rodent-level evidence for fat mass reduction. |
| Humanin | Not approved | T4/T5 | Mitochondrial-derived, cytoprotective and neuroprotective in models. |
§7
Compound reference — repair, regenerative and mitochondrial
T22T32T441 unverified
| Compound | Status | Evidence | What is actually shown | Key risks |
|---|
| BPC-157 | Not approved in any major jurisdiction. On FDA's 503A category 2 bulk drug substances list, which ended lawful US compounding | T4, with one historical clinical program | Extensive rodent data on tendon, ligament, muscle, gut and vascular healing, largely from one group. Went into human trials as PL 14736 for inflammatory bowel disease; the program did not proceed to approval. No published human PK. | Mechanism involves angiogenesis and VEGF signalling. The theoretical concern is promotion of occult malignancy or vascular lesions. This is mechanistic, not demonstrated, and it is also not excluded — there is no long-term human safety data of any kind. |
| TB-500 / thymosin β4 | Not approved. Category 2 bulk list | T4 | Actin-binding, cell migration, angiogenesis in models. TB-500 is a synthetic fragment (the LKKTETQ actin-binding region), not full-length thymosin β4, and the two are routinely conflated by vendors. | Same angiogenesis concern. Explicitly named on the WADA prohibited list. |
| GHK-Cu | Cosmetic ingredient use; not an approved drug for systemic use | T3 topical / T4 systemic | Real evidence for topical skin effects. Systemic claims are not supported. | Copper load with systemic use is unquantified. |
| KPV | Not approved. Category 2 bulk list | T4 | Lys-Pro-Val, the C-terminal tripeptide of α-MSH. Anti-inflammatory via melanocortin receptor signalling in models, mostly gut and skin. | Not characterised in humans. |
| Larazotide | Not approved. Phase 3 in coeliac disease did not meet its primary endpoint | T2 negative | Tight-junction regulator. | The most rigorously tested "leaky gut" intervention, and it failed. Relevant to any protocol built on intestinal permeability. |
| ARA-290 / cibinetide | Not approved | T3 | EPO-derived helix B peptide, non-erythropoietic; small trials in sarcoidosis small-fibre neuropathy. | — |
| Elamipretide (SS-31) | Stealth BioTherapeutics. Trials in Barth syndrome (TAZPOWER), primary mitochondrial myopathy (MMPOWER-3), dry AMD, LHON | T2, mixed | Cardiolipin-binding tetrapeptide that stabilises the inner mitochondrial membrane. MMPOWER-3 missed its primary endpoint. The Barth syndrome program went through an FDA advisory committee with a narrow vote and subsequent regulatory back-and-forth. | Verify current approval status — this may have changed. Presenting it as an available performance tool overstates a program with a mixed trial record. |
The honest summary of this section: the regenerative peptides that dominate the marketing have the weakest evidence in the document, and the two compounds in this class that were tested most rigorously in humans — larazotide and elamipretide's myopathy trial — both missed their endpoints.
§8
Compound reference — immune, neuro, melanocortin, bioregulators
T13T22T34T46T54T61
Immune
| Compound | Status | Evidence | Notes |
|---|
| Thymosin alpha-1 (thymalfasin) | Approved in a number of countries (not the US) for hepatitis B and as a vaccine adjuvant | T2 | The best-evidenced immune peptide. |
| Thymalin | Russian-registered thymic peptide preparation | T3/T4 | Evidence base largely Russian-language, single-group. |
| LL-37 | Not approved | T4/T5 | Human cathelicidin. The excerpt's framing as an anti-inflammatory is wrong. LL-37 is a dual-function molecule: it is antimicrobial, but it is also strongly pro-inflammatory in several contexts and is mechanistically implicated in the pathology of psoriasis, rosacea, and lupus, where it complexes with self-DNA to activate plasmacytoid dendritic cells and drive interferon responses. This is a genuine contraindication signal that the source material inverts. |
Neuro / cognitive
| Compound | Status | Evidence | Notes |
|---|
| Semax | Registered as a medicine in Russia for stroke and cognitive indications; not approved in the US, EU, UK, AU or NZ | T3 | ACTH(4-10) analog with a Pro-Gly-Pro tail. Evidence base predominantly Russian-language. |
| Selank | Registered in Russia as an anxiolytic | T3 | Tuftsin analog. Same evidence-base caveat. |
| Cerebrolysin | Registered in a number of countries | T2, contested | Porcine brain-derived peptide preparation. Cochrane reviews of its use in stroke and dementia have been unfavourable or inconclusive. |
| DSIP | Not approved | T5 | "Delta sleep-inducing peptide." The evidence that it induces sleep in humans is very weak. |
| Dihexa | Not approved | T4 | Angiotensin IV analog, hepatocyte growth factor pathway. Preclinical only. Potent neurotrophic activity in models means the growth-promotion concern applies. |
| Oxytocin | Approved for obstetric indications (IV) | T1 obstetric / T3 for behavioural claims | Intranasal oxytocin for social and behavioural effects has a large but poorly replicating literature. |
Melanocortin
| Compound | Status | Evidence | Notes |
|---|
| Bremelanotide (PT-141) | FDA-approved (Vyleesi) 2019 for hypoactive sexual desire disorder in premenopausal women | T1 | 1.75 mg SC by autoinjector, as needed, maximum one dose per 24 hours and 8 per month. Nausea in roughly 40% of patients. Transient blood pressure increase and heart rate decrease — contraindicated in uncontrolled hypertension or known cardiovascular disease. Focal hyperpigmentation with repeated use. |
| Afamelanotide (Scenesse) | Approved (FDA/EMA) for erythropoietic protoporphyria | T1 | Implant, narrow indication. |
| Melanotan II | Not approved anywhere. Widely sold grey-market | T6 | Case reports of new and changing melanocytic naevi, and case reports of melanoma in users. Also rhabdomyolysis and priapism reports. Included here specifically because it is the cautionary case for this class. |
Khavinson bioregulators
| Compound | Sequence | Status | Evidence |
|---|
| Epitalon | Ala-Glu-Asp-Gly | Not approved outside Russia | T4/T5. Telomerase activation claims originate from Khavinson's own group, largely in cell culture and small Russian studies. Independent replication is thin. Long-term human data absent. |
| Vilon | Lys-Glu | Not approved outside Russia | T4 |
| Pinealon | Glu-Asp-Arg | Not approved outside Russia | T4/T5 |
The bioregulator concept — that very short peptides act as regulatory signals on gene expression rather than as substrates — is a legitimate hypothesis with real mechanistic proposals behind it. What it does not have is the independent, multi-centre, long-horizon human evidence that the excerpt's framing implies. "This changed longevity medicine permanently" is not a supportable sentence.
§9
Regulatory status map
no tiers cited
The excerpt's central regulatory claim is that peptides cannot be patented and therefore cannot be developed. This is false, and it is load-bearing for the whole argument, so it is worth dismantling precisely.
The patent claim is wrong
| The claim | The reality |
|---|
| "Peptides are identical to molecules the body produces, so cannot be patented" | Naturally-occurring sequences as such are generally not patentable, but analogs, modifications, formulations, delivery systems, manufacturing processes, and specific medical uses all are. |
| "No patent = no exclusivity = nobody invests" | Semaglutide, tirzepatide, tesamorelin, teduglutide, setmelanotide, bremelanotide, liraglutide and afamelanotide are all patented peptide drugs. The GLP-1 class alone represents one of the largest revenue events in pharmaceutical history. |
| Implied conclusion: absence of approval reflects economics, not evidence | Sometimes true, sometimes not. Sermorelin's withdrawal was commercial. AOD-9604's absence is a failed trial. Larazotide's absence is a failed Phase 3. Elamipretide's mitochondrial myopathy indication is a missed primary endpoint. Presenting all absence as economic is the key rhetorical move of the source material and it does not survive contact with the trial record. |
The honest version of the argument is narrower and still worth making: for unmodified endogenous sequences with no viable exclusivity position, commercial sponsorship is genuinely absent, and so the evidence base stays thin indefinitely. That is true of BPC-157. It is not true of the field.
On trial costs: the excerpt's per-phase figures ($50M / $120M / $500M) are presented as fixed facts. The published estimates in this area, principally from the Tufts/DiMasi line of work and its critics, are capitalised cost per approved drug including failures and cost of capital, not out-of-pocket cost per phase, and the estimates vary by an order of magnitude between authors. Quote a range with a source or drop the numbers.
Status by jurisdiction
| Jurisdiction | Mechanism that matters | Practical effect |
|---|
| United States | FDA approval; plus compounding under FD&C Act sections 503A (pharmacies) and 503B (outsourcing facilities). In 2023 FDA placed a batch of peptides — including BPC-157, ipamorelin, epitalon, KPV and thymosin beta-4 fragments — in category 2, meaning significant safety risks identified | Category 2 listing effectively ended lawful compounding of those substances. This is an affirmative regulatory finding, not merely an absence of approval — which is the opposite of the excerpt's "regulatory gap is not danger" framing for these specific compounds. |
| European Union | EMA centralised or national approval | No route for the unapproved compounds. |
| United Kingdom | MHRA | Same. |
| Australia | TGA. Peptides are largely Schedule 4 (prescription only); TGA has issued specific warnings about peptide clinics | — |
| New Zealand | Medsafe. Unapproved medicines may be supplied by a registered practitioner to a particular patient under section 29 of the Medicines Act 1981, with notification. Prescription medicines require a prescription. There are separate provisions governing personal importation of prescription medicines | These are the mechanical provisions. Whether any particular activity falls inside or outside them is a question for a lawyer or for Medsafe directly, and this document does not answer it. |
The "research use only" mechanism
Grey-market peptide supply operates by labelling product "for research use only, not for human consumption." That label is the entire legal architecture of the sector. It also means, mechanically, that the product is not manufactured, tested, released, or stored to pharmaceutical standard, and that no pharmacovigilance system exists behind it.
This is the single largest omission in the source material. The product is sold to "the modern athlete" and contains no mention of anti-doping status at all. An athlete in a tested sport who follows its base protocol fails a test.
The World Anti-Doping Agency Prohibited List is revised annually and takes effect on 1 January. Categories relevant here:
| Category | Covers | Compounds in this document |
|---|
| S0 — Non-approved substances | Any pharmacological substance with no current approval by any governmental regulatory health authority for human therapeutic use | Catches BPC-157, MOTS-c, epitalon, and most of the research-only list by default |
| S2 — Peptide hormones, growth factors, related substances and mimetics | GH and its releasing factors, including GHRH analogs and GHRPs/ghrelin agonists; IGF-1 and its analogs; erythropoietins; thymosin-β4 is explicitly named | Sermorelin, tesamorelin, CJC-1295, ipamorelin, GHRP-2/6, hexarelin, MK-677, somatropin, mecasermin, IGF-1 LR3, TB-500 |
| S4 — Hormone and metabolic modulators | Includes metabolic modulators; AMPK activators such as AICAR are explicitly listed | MOTS-c falls in this logic as an AMPK activator |
| S5 — Diuretics and masking agents | — | Not relevant here |
BPC-157 was added to the prohibited list in 2022. GLP-1 receptor agonists such as semaglutide and tirzepatide are not, as of this document's knowledge, on the prohibited list — but weight-class sports and individual federations may have their own rules, and the list changes yearly.
Verify every line of this table against the current Prohibited List at wada-ama.org before publishing. An out-of-date anti-doping table in a commercial product is a serious liability.
Additional bodies with their own lists: national anti-doping organisations, UFC/USADA-style promotion-specific programmes, the NCAA, professional league programmes, and the military drug policies of several countries. A "not on the WADA list" finding does not clear a substance under all of them.
§11
Safety architecture
T41
Contraindications by mechanism class
| Class | Do not use / use only under specialist supervision |
|---|
| GH axis (GHRH analogs, GHRPs, GH, IGF-1) | Active or recent malignancy. Active proliferative diabetic retinopathy. Acute critical illness — the 1999 NEJM trial found increased mortality with high-dose GH in ICU patients. Untreated hypothyroidism. Pregnancy and breastfeeding. Benign intracranial hypertension history. Known hypersensitivity. Caution in any diabetes or prediabetes: this class worsens insulin sensitivity. |
| Incretins (GLP-1, GIP/GLP-1) | Personal or family history of medullary thyroid carcinoma or MEN2 — boxed contraindication. History of pancreatitis. Severe gastroparesis. Pregnancy. Type 1 diabetes (not indicated). Caution with rapid HbA1c reduction in existing retinopathy. Anaesthesia planning required before elective procedures. |
| Melanocortins | Uncontrolled hypertension or known cardiovascular disease (bremelanotide label). Personal or family history of melanoma, or numerous/atypical naevi. |
| Growth-factor and angiogenic repair peptides (BPC-157, TB-500, dihexa) | Any history of malignancy, and any undiagnosed lump, lesion or bleeding, until investigated. The concern is mechanistic and unquantified; that is a reason for caution, not reassurance. |
| Immune modulators (thymic peptides, LL-37) | Autoimmune disease. Solid organ transplant or any immunosuppression. LL-37 specifically: psoriasis, rosacea, lupus. |
| All classes | Pregnancy, breastfeeding, and under-18s: no safety data exists for any of the unapproved compounds in any of these populations. |
Baseline panel
Nothing in this field is interpretable without a before. The excerpt tells the reader to "evaluate CRP and IL-6 at week 9" without ever establishing a baseline, which makes the week-9 number uninterpretable.
Metabolic: fasting glucose, fasting insulin (compute HOMA-IR), HbA1c, full lipid panel including ApoB, liver enzymes, renal function and eGFR.
Endocrine: IGF-1 (essential before anything touching the GH axis), TSH and free T4, total and free testosterone, SHBG, LH, FSH, oestradiol, prolactin, morning cortisol.
Inflammatory: hs-CRP. Note that IL-6 is not a standard clinical monitoring assay — it is short-lived, highly variable, rises acutely with exercise, and is not validated for tracking "chronic silent inflammation" in an individual. Building a protocol around serial IL-6 is measurement theatre.
Haematology and other: full blood count, ferritin, vitamin D, B12, folate, homocysteine.
Additional before incretins: lipase and amylase; calcitonin only if history warrants; thyroid and family history documented.
Additional for anyone over 40 or with risk factors: blood pressure, resting ECG, and age-appropriate cancer screening completed and current before any growth-factor exposure.
Monitoring cadence
Baseline, then week 6 to 8, then week 12, then quarterly. IGF-1 specifically on anything touching the GH axis, at every point. Fasting glucose and HbA1c on anything metabolic or GH-related.
Stop rules — seek medical assessment immediately
- Severe abdominal pain, particularly radiating to the back, with or without vomiting (pancreatitis)
- New persistent headache, visual change, or nausea on waking (intracranial pressure)
- Any new lump, mass, persistent lymph node, unexplained bleeding, or unexplained weight loss
- Any new, changing, bleeding or asymmetric mole
- Injection site: spreading redness, heat, swelling, fluctuance, or fever (abscess or cellulitis)
- New numbness, tingling, or hand weakness (carpal tunnel, common with GH axis)
- Chest pain, palpitations, syncope, or a sustained resting heart rate or blood pressure change
- Persistent vomiting, inability to keep fluids down, or signs of bowel obstruction on an incretin
Interactions
- GLP-1 and GIP/GLP-1 agonists delay gastric emptying, which alters the absorption of oral medicines. Narrow-therapeutic-index drugs need monitoring. Warfarin INR should be checked more frequently.
- Combining an incretin with insulin or a sulfonylurea requires reduction of the insulin or sulfonylurea dose, or hypoglycaemia results.
- GH affects cortisol metabolism via 11β-HSD1 and can unmask previously compensated adrenal insufficiency. It also affects thyroid hormone conversion, which can unmask hypothyroidism.
- Oral oestrogen reduces the IGF-1 response to GH, so requirements differ.
- Bremelanotide should not be combined with substances that raise blood pressure, given its transient pressor effect.
§12
Sourcing, purity and the certificate of analysis
no tiers cited
The sales page defers this entirely to a bonus. It is not a bonus. It is the difference between the molecule you think you have and the one in the vial.
What a certificate of analysis must contain
| Item | What it proves | What "missing" means |
|---|
| Identity by mass spectrometry (ESI-MS or MALDI-TOF) with observed vs theoretical molecular weight | The vial contains the sequence claimed | Without it you have no evidence the compound is what the label says |
| Purity by HPLC, with the chromatogram, not just a number | How much of the material is the target peptide | A stated "99%" with no trace is an assertion |
| Impurity profile | What the other 1 to 5% is: truncated sequences, deletion or insertion sequences, D-isomer epimers, oxidation products | Impurities in a synthetic peptide are structurally related to the target and are the main immunogenicity and off-target risk |
| Counterion / salt form and net peptide content | Whether "5 mg" is gross or net | This is the most common silent dosing error in the sector. Synthetic peptides are usually isolated as TFA or acetate salts. A vial labelled 5 mg may contain 5 mg of salt, of which perhaps 75 to 85% is peptide. That is a 15 to 25% overstatement of what you are actually administering. |
| Water content (Karl Fischer) | Residual moisture affecting mass and stability | — |
| Endotoxin (LAL assay, EU/mg), lot-specific | Bacterial pyrogen contamination | An injected endotoxin load causes fever, chills, and systemic inflammatory response. Research-grade material is frequently not tested for this. |
| Sterility | — | Research-grade material is generally not sterile-filled |
| Residual solvents | Synthesis reagent carryover | — |
| Lot number and date matching the vial in your hand | That this CoA describes this batch | A generic PDF from a website describes nothing |
The trust chain
A vendor-supplied CoA is a vendor's claim. Independent third-party testing on the specific lot, commissioned by someone with no financial interest in the result, is evidence. Published analyses of grey-market peptide products have repeatedly found under-dosed vials, mislabelled compounds, and products containing something other than the labelled substance. Locate and cite specific published analyses before publishing this section — do not rely on the general claim.
Why the compounding route mattered
Before the FDA category 2 listing, a 503A compounding pharmacy in the US provided a route where the product was made under pharmacy standards, on a prescription, with a practitioner in the loop. The category 2 listing closed that route for the named substances, which pushed demand toward research-chemical supply, which has none of those controls. That is a real and under-discussed consequence of the regulatory action.
§13
Handling — reconstitution arithmetic, storage, sterility
no tiers cited
Included because dosing errors of a factor of ten are the most common serious harm in self-administration, and the arithmetic that prevents them is generic pharmacy maths.
The concentration calculation
Concentration equals total peptide mass divided by diluent volume.
A U-100 insulin syringe is graduated in units where 100 units = 1 mL, so 1 unit = 0.01 mL. This is the conversion where errors happen.
Worked example, purely as arithmetic:
Vial contains : 5 mg peptide (net, after checking salt form)
Diluent added : 2 mL bacteriostatic water
Concentration : 5 mg / 2 mL = 2.5 mg/mL = 2500 mcg/mL
1 insulin unit : 0.01 mL
Peptide per unit : 2500 mcg/mL x 0.01 mL = 25 mcg per unit
Change the diluent volume and every subsequent number changes. Write the concentration on the vial in permanent marker at the moment of reconstitution.
Diluent choice
- Bacteriostatic water contains 0.9% benzyl alcohol as a preservative, permitting repeated withdrawals from a multi-dose vial over a period of days.
- Sterile water for injection has no preservative and is single-use.
- Benzyl alcohol is contraindicated in neonates and in known hypersensitivity.
Technique
- Swab the vial stopper with alcohol and allow it to dry before every puncture.
- Add diluent slowly, directed down the inside wall of the vial, not straight onto the powder.
- Swirl gently. Do not shake. Peptides are shear-sensitive and agitation promotes aggregation, which both reduces potency and increases immunogenicity.
- Allow full dissolution. A solution that stays cloudy, discoloured, or shows particulates should be discarded, not used.
- New sterile needle for every draw and every injection. Sharps into a proper sharps container.
Storage
- Lyophilised powder: stable refrigerated or frozen, protected from light. Check the condition on arrival — a vial that arrived warm after several days in transit has an unknown history.
- After reconstitution: refrigerate at 2 to 8°C. Typical working guidance for many peptides in bacteriostatic water is a few weeks, but stability data for the research-only compounds is largely unpublished, and anyone stating a precise figure for BPC-157 or MOTS-c in solution is extrapolating.
- Do not freeze a reconstituted solution and do not freeze-thaw.
- Protect from light.
Route
Subcutaneous, intramuscular, intranasal and oral are not interchangeable. Route determines bioavailability, onset, and in some cases whether the compound reaches the target at all. Site rotation prevents lipohypertrophy and local reactions.
What this section does not cover
Combining two compounds in one vial or one syringe. Nothing in this document addresses physical co-mixing: whether two peptides are chemically compatible in solution, what a shared diluent does to the stability of either, whether one compound's counterion or pH affects the other, or how co-mixing changes adsorption to the vial and syringe surfaces. This is a real and commonly asked question and the honest answer here is that this reference cannot answer it.
Note that the practice is widespread and the silence is not endorsement. Compatibility is a formulation question with a compound-by-compound answer, and for the research-only compounds it is unlikely that anyone has generated the data at all — the stability figures for a single compound in bacteriostatic water are already largely unpublished, as noted above. See the verification queue, item 16.
Separately, and distinct from this: whether you should be running several compounds at once is a protocol-design question, not a handling one, and §14 principle 3 answers it.
§14
Protocol design principles
no tiers cited
Not prescriptions. The logic that separates a protocol from a ritual.
- Frequency follows half-life. See §4. Any schedule that is not derived from the compound's own kinetics is arbitrary.
- Pulsatile and continuous are different drugs. Especially on the GH axis. Continuous GPCR stimulation drives desensitisation.
- Change one variable at a time. Stacking four compounds and reporting that "the protocol worked" produces no information. This is the single most common failure in the entire field, and it is what allows ineffective compounds to accumulate reputations.
- Define the endpoint before you start, and make it measurable. "Better recovery" is not an endpoint. Grip strength, a specific lift at a specific RPE, hs-CRP, HOMA-IR, DEXA body composition, sleep-stage data, or a validated pain score are endpoints.
- Baseline for long enough to see your own variance. Most biomarkers move substantially week to week for reasons unrelated to any intervention.
- People start protocols at their worst. Regression to the mean will produce improvement in the absence of any effect. So will placebo, which is large for subjective endpoints like pain, energy and mood — precisely the endpoints this field markets on.
- Minimum effective exposure, and a defined stop. Open-ended use of a compound with no long-term human safety data is an uncontrolled experiment with a sample size of one and no follow-up.
- Washout and re-baseline before assessing anything new.
- Time-to-signal differs by mechanism. Metabolic effects appear in weeks. Body composition takes months. Tissue repair is on the timescale of tissue repair, which no signalling molecule shortens below the biological floor.
- Confirm the boring variables are fixed first. If sleep is 5 hours, protein intake is inadequate, alcohol is regular, or training is unprogrammed, no peptide is the limiting factor, and any effect will be swamped.
§15
The three pillars, corrected
T17T423 unverified
The excerpt's triad — insulin resistance, chronic inflammation, sleep dysregulation — is a reasonable organising frame. The mechanisms as written contain errors, and the intervention hierarchy is inverted.
Pillar 1 — insulin resistance
What the excerpt gets wrong. It states that a stress signal via CRH and cortisol "lowers blood glucose." Cortisol raises blood glucose, through hepatic gluconeogenesis and peripheral insulin antagonism. That is the entire point of the stress response. It also says "almost all glucose goes to fat tissue instead of muscle," which misstates the physiology: skeletal muscle is the site of roughly 70 to 80% of insulin-stimulated glucose disposal, and in insulin resistance muscle uptake falls while hepatic de novo lipogenesis rises.
What is actually established. Impaired GLUT4 translocation to the membrane, rather than simple receptor "downregulation," is the proximate defect in muscle. Critically, muscle contraction stimulates GLUT4 translocation through an insulin-independent, AMPK-linked pathway. This is why exercise improves glucose disposal in people whose insulin signalling is impaired, and it is the most robustly evidenced intervention available.
Measurement: fasting glucose with fasting insulin, computed as HOMA-IR; HbA1c; triglyceride-to-HDL ratio; ApoB; an oral glucose tolerance test with insulin if the picture is unclear.
Intervention hierarchy by evidence strength:
| Rank | Intervention | Tier |
|---|
| 1 | Energy balance and fat mass reduction, particularly visceral | T1 |
| 2 | Resistance training plus aerobic training | T1 |
| 3 | Sleep extension to 7–9 hours | T1 |
| 4 | Dietary quality: fibre, protein adequacy, alcohol reduction | T1 |
| 5 | Metformin | T1 |
| 6 | GLP-1 / GIP-GLP-1 agonists | T1 |
| 7 | Tesamorelin, for visceral fat, in its licensed population | T1 narrow |
| 8 | MOTS-c, 5-Amino-1MQ | T4 — rodent |
The excerpt's "molecular solutions" section presents rank 8 as the answer and does not mention ranks 1 through 4.
Pillar 2 — inflammation
What the excerpt gets wrong. It treats IL-6 as uniformly pathological. Skeletal muscle releases IL-6 during exercise as a myokine, and that exercise-induced IL-6 signal has net anti-inflammatory downstream effects, including induction of IL-10 and IL-1ra. Conflating exercise-derived IL-6 with adipose- and macrophage-derived chronic IL-6 is a substantive error, and it leads directly to the wrong conclusion, which is to suppress a signal that is part of the adaptation.
It also inverts LL-37, as noted in §8.
What is usable. hs-CRP is the practical marker, it is standardised, and it has outcome data behind it. "Chronic silent inflammation" is not a diagnosis and has no diagnostic criteria; it is a useful shorthand and should be labelled as one.
Established drivers of low-grade systemic inflammation: adiposity, particularly visceral; insufficient sleep; alcohol; smoking; periodontal disease; low dietary quality; physical inactivity; untreated sleep apnoea.
Intervention hierarchy: the same first four ranks as Pillar 1, plus treatment of periodontal disease and sleep apnoea where present. The peptide options in the excerpt's anti-inflammatory protocol — BPC-157, KPV, LL-37, SS-31 — are T4 for this purpose, and the one intervention in this space that received a properly powered human trial, larazotide for intestinal permeability, missed its endpoint.
The excerpt's "anti-inflammatory base protocol" — BPC-157 alone weeks 1-2, add SS-31 weeks 3-4, add MOTS-c weeks 5-8 — has no dose, no route, no frequency, and combines three compounds with no human efficacy data in a sequence that makes attribution impossible. It also violates its own principle of measurement by placing the first biomarker check at week 9, with no baseline.
Pillar 3 — sleep and the nocturnal axis
This is the pillar the excerpt truncates, and it is the one with the strongest human evidence. That inversion is the clearest single indicator of the document's priorities.
What is established in humans, with controlled designs:
- Growth hormone secretion is concentrated in the first episodes of slow-wave sleep. Fragmenting or suppressing slow-wave sleep suppresses the nocturnal GH pulse directly. No secretagogue restores a pulse the architecture is not there to support.
- Restricting healthy young men to approximately 4 hours in bed for 6 nights produced a marked reduction in glucose tolerance and insulin sensitivity (Spiegel, Leproult and Van Cauter, Lancet 1999). Verify the exact effect size before quoting a percentage.
- Restricting sleep to approximately 5 hours per night for one week reduced daytime testosterone by roughly 10 to 15% in healthy young men (Leproult and Van Cauter, JAMA 2011). Verify.
- Sleep restriction during caloric restriction shifted the composition of weight lost away from fat and toward lean mass (Nedeltcheva et al., Annals of Internal Medicine 2010). Verify.
The implication. These are randomised or crossover human studies with effect sizes larger than anything demonstrated for any unapproved peptide in this document, and the intervention is free. A product that positions itself as a performance system and truncates this section while leading with BPC-157 has its hierarchy exactly backwards.
Peptide angles, honestly stated: DSIP has essentially no human evidence of sleep induction. GHRH administration has been shown to modestly increase slow-wave sleep in research settings, which is mechanistically interesting and not a licensed use. Nothing here competes with sleep opportunity, timing regularity, light exposure, alcohol removal, and treatment of undiagnosed sleep apnoea.
§16
Errata against the source excerpt
no tiers cited
| # | Excerpt claim | Correction |
|---|
| 1 | Guillemin and Schally isolate TRH and GnRH in 1975 | Characterised 1969 (TRH) and 1971 (GnRH); somatostatin 1973 |
| 2 | Nobel Prize 1977 (stated correctly) but tied to a 1975 isolation | Prize shared with Rosalyn Yalow, 1977 |
| 3 | "4 foundational hypothalamic neuropeptides of up to 14 amino acids" | Only three fit. CRH is 41 residues (1981), GHRH 44 (1982) |
| 4 | BPC-157 placed in the 1980–1990 era | Zagreb work published from the early-to-mid 1990s |
| 5 | Pert maps opioid receptors in the immune system, 1980, as "first direct evidence" | Pert identified the opiate receptor with Snyder in 1973; immune receptor work followed later |
| 6 | Pert coins "molecules of emotion" in 1985 | Title of her 1997 book. The 1985 J Immunol paper is titled differently |
| 7 | "A stress signal (cortisol, CRH) ... lowers blood glucose" | Cortisol raises blood glucose |
| 8 | IL-6 presented as uniformly pathological | Exercise-derived muscle IL-6 is a myokine with net anti-inflammatory downstream effects |
| 9 | LL-37 presented as an anti-inflammatory | Dual-function; strongly pro-inflammatory in several contexts, implicated in psoriasis, rosacea and lupus |
| 10 | NAD+ and 5-Amino-1MQ listed among peptides | Neither is a peptide |
| 11 | AOD-9604 "directs fat burning" | Human Phase 2b failed to separate from placebo on weight loss |
| 12 | "Peptides cannot be patented, therefore no company invests" | False. Semaglutide, tirzepatide, tesamorelin, bremelanotide, teduglutide, setmelanotide are all patented approved peptide drugs |
| 13 | Trial costs stated as $50M / $120M / $500M per phase | Published figures are capitalised cost per approval including failures, and estimates vary by an order of magnitude |
| 14 | Mitochondrial decline "10–15% by age 30–40" | No source given; the underlying literature is heterogeneous and not this precise |
| 15 | "They do not create dependence when used correctly" | Exogenous GH and IGF-1 suppress endogenous production via negative feedback. Incretin discontinuation produces weight regain (STEP 4) |
| 16 | Epitalon "changed longevity medicine permanently" | Telomerase claims are single-group, largely in vitro, without robust independent replication |
| 17 | "The regulatory gap is not synonymous with danger" | True in general; but BPC-157, ipamorelin, epitalon and KPV are on FDA's category 2 list, which is an affirmative safety finding, not an absence |
| 18 | KPV bullet point | Text is corrupted, merging mid-sentence into the SS-31 description. A paragraph is missing |
| 19 | Spanish text throughout ("Vía CRH", "LOS 3 PILARES", "manages stress bad") | Untranslated residue from a Spanish original |
| 20 | Anti-doping status | Absent entirely. Most compounds discussed are prohibited in tested sport |
| 21 | Doses, routes, frequencies | Absent entirely, despite being the headline promise of the sales page |
| 22 | Citations | Absent entirely, despite "every claim includes study citations" on the sales page |
| 23 | Week-9 biomarker evaluation with no baseline | An uninterpretable measurement |
| 24 | Larazotide / leaky gut framing | The best-tested intervention for intestinal permeability missed its Phase 3 primary endpoint |
§17
Open questions — what nobody actually knows
no tiers cited
Stated plainly, because a reference that hides its ignorance is worse than no reference.
- Long-term safety of every unapproved compound in this document is unknown. There are no multi-year human safety cohorts for BPC-157, TB-500, MOTS-c, epitalon, KPV, or the GHRPs.
- Cancer risk from chronic growth-factor and angiogenic signalling is unquantified. The mechanistic concern is real, the human data does not exist, and absence of data is not absence of risk.
- There is no human dose-response curve for most of these compounds. Where the market has settled on a number, that number's provenance is usually a forum, a vendor, or an allometric conversion from a rodent study.
- No human pharmacokinetics are published for BPC-157, TB-500 or MOTS-c, so even dosing frequency is guesswork.
- No pregnancy, breastfeeding or paediatric data for any unapproved compound.
- No systematic drug-interaction data.
- Effect sizes relative to baseline behaviour are unknown. Nobody has run a trial of a peptide against adequate sleep, and there is no reason to assume the peptide wins.
- Publication bias in the single-group corpora (Zagreb for BPC-157, St Petersburg for the bioregulators) is unquantified and structurally difficult to assess.
- Grey-market product identity and purity are unknown per-vial without independent lot testing, which almost nobody does.
§18
Glossary
no tiers cited
- AMPK
- AMP-activated protein kinase; cellular energy sensor activated when ATP falls, and by exercise.
- Bioavailability
- fraction of an administered dose reaching systemic circulation unchanged.
- Bioregulator
- Khavinson's term for very short peptides proposed to act as regulatory signals on gene expression.
- CoA
- certificate of analysis; a document reporting the identity, purity and contaminant testing of a specific manufacturing lot.
- DAC
- drug affinity complex; a maleimide group that binds covalently to serum albumin, extending half-life dramatically.
- Endotoxin
- bacterial lipopolysaccharide; pyrogenic when injected. Measured by LAL assay in endotoxin units per mg.
- GHRH
- growth hormone-releasing hormone; acts on the pituitary, feedback intact.
- GHRP
- growth hormone-releasing peptide; ghrelin receptor agonist.
- GLUT4
- the insulin- and contraction-responsive glucose transporter in muscle and fat.
- HOMA-IR
- homeostatic model assessment of insulin resistance, computed from fasting glucose and fasting insulin.
- hs-CRP
- high-sensitivity C-reactive protein; the practical inflammation marker.
- Lyophilised
- freeze-dried; the stable powder form peptides ship in.
- Myokine
- a signalling molecule released by contracting skeletal muscle.
- Net peptide content
- the actual peptide mass in a vial after excluding counterion salt and water; usually below the labelled gross mass.
- Pulsatile vs continuous
- whether a receptor sees intermittent spikes or sustained elevation; determines desensitisation.
- S0 / S2 / S4
- WADA Prohibited List categories.
- 503A / 503B
- US compounding pharmacy and outsourcing facility categories under the FD&C Act.
- TFA
- trifluoroacetic acid; common counterion from peptide synthesis and purification.
§19
Verification queue
no tiers cited
Nothing in this document should be published, sold, or relied on until these are checked against the named primary source. Items are ordered by consequence.
| # | Claim to verify | Authority to check |
|---|
| 1 | Every entry in the anti-doping table (§10) | Current WADA Prohibited List, wada-ama.org, effective 1 January of the current year |
| 2 | Elamipretide approval status and indication | FDA Drugs@FDA; Stealth BioTherapeutics announcements |
| 3 | FDA 503A category 2 list contents and date | FDA compounding bulk drug substances lists |
| 4 | All approved-drug label doses and boxed warnings in §6, §8 | Current FDA prescribing information for each product |
| 5 | Approval status of retatrutide, survodutide, cagrilintide | Drugs@FDA / EMA |
| 6 | Sleep study effect sizes in §15 Pillar 3 | Spiegel Lancet 1999; Leproult JAMA 2011; Nedeltcheva Ann Intern Med 2010 |
| 7 | AOD-9604 Phase 2b outcome | Metabolic Pharmaceuticals trial publications and registry record |
| 8 | Larazotide Phase 3 outcome | 9 Meters Biopharma announcements; ClinicalTrials.gov |
| 9 | CJC-1295 clinical program adverse event | Primary sources only; this is currently a recollection and may be wrong |
| 10 | BPC-157 clinical program (PL 14736) status and sponsor | ClinicalTrials.gov, EU CTR |
| 11 | Published analyses of grey-market peptide purity | Locate specific citations; do not publish the general claim unsourced |
| 12 | All half-life figures marked medium confidence or "verify" in §4 | Primary PK literature |
| 13 | NZ Medicines Act 1981 s.29 mechanics and personal-import provisions | Medsafe; a lawyer if this is going into a commercial product |
| 14 | Historical dates and attributions in §3 | Nobel Prize archives; original Nature and Science papers |
| 15 | Trial cost estimates if retained at all | DiMasi et al. and published critiques; quote a range |
| 16 | Physical co-mixing compatibility — this document does not cover it at all (§13). Establish whether compatibility, shared-diluent stability, pH and counterion interaction, and adsorption data exist for any of the commonly co-mixed pairs, or confirm that they do not | Formulation and stability literature; approved-product prescribing information for the approved compounds, which states admixture compatibility where it is known; a compounding pharmacist for the rest |
Provenance
no tiers cited
Written to fill the gaps identified in a teardown of the "Prime Peptides" product (emprendesinlimites.com/pep) and the module-1 excerpt supplied on 2026-09-03. The teardown found: no doses, no citations, no contraindications, no anti-doping content, no reconstitution or storage guidance, no baseline labs, and several factual errors, against a sales page promising exactly those things for $27.
This document is AI-synthesised and unverified. Treat every number in it as a hypothesis until §19 is cleared.