Every peptide, graded on the evidence.
What each research peptide is, what studies actually show, what is still unknown, and where it stands with the FDA and WADA. Every claim is cited to PubMed, ClinicalTrials.gov or a regulator.
Tissue repair peptide
BPC-157
- G
- E
- P
- P
- P
- G
- K
- P
- A
- D
- D
- A
- G
- L
- V
15 amino acids, first isolated from human gastric juice
- US FDA
- Not approved
- WADA
- Prohibited, class S0
- Strongest evidence
- Animal
- Human trials
- 4 registered, none reported
How we grade evidence
Every effect we report carries one of five levels, so a finding in rats never reads like a proven benefit in people.
- Lab
Cells or tissue in a dish. The effect in people is unknown.
- Animal
Rats, mice or other animals. The effect in people is very uncertain.
- Human
Case series or observational studies in people. The effect may be real.
- RCT
Randomised, placebo-controlled trials. The effect is likely.
- Approved
Approved by a regulator for a stated use, on the strength of trials.
Browse by peptide class
Peptides are grouped by how they act in the body, not by what they are marketed for.
- GLP-1 & incretin peptidesSemaglutide, tirzepatide, retatrutide and other GLP-1, GIP, glucagon and amylin agonists.
- Growth hormone secretagoguesGHRH analogues (CJC-1295, sermorelin, tesamorelin) and ghrelin mimetics (ipamorelin, hexarelin).
- Tissue repair peptidesBPC-157, TB-500 / thymosin beta-4 and other peptides studied for healing.
- Copper peptidesGHK-Cu and related copper-binding peptides in skin, hair and wound research.
- Melanocortin peptidesMelanotan I and II, PT-141 (bremelanotide) and other melanocortin agonists.
- Mitochondrial peptidesMOTS-c, SS-31 (elamipretide), humanin and other mitochondria-targeted peptides.
- Nootropic & neuro peptidesSemax, Selank, DSIP and others studied for cognition, mood and sleep.
- Immune & antimicrobial peptidesThymosin alpha-1, KPV, LL-37 and other immune-modulating peptides.
- Bioregulators & longevityEpitalon and other short peptides studied in ageing research.
- Reproductive & hormonal peptidesKisspeptin and peptides acting on the reproductive and endocrine axes.
- Peptide fundamentalsWhat peptides are, how they are studied and regulated, and the terms used.
Latest entries
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Dihexa: benefits, evidence and legal status
Dihexa (PNB-0408) is a small, modified peptide derived from angiotensin IV, built on two amino acids (tyrosine and isoleucine) and designed at Washington State…
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Cerebrolysin: benefits, evidence and legal status
Cerebrolysin is a prescription drug made from pig brain: a mixture of low-molecular-weight peptides and free amino acids, studied as a neurotrophic agent in…
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Survodutide: benefits, evidence and legal status
Survodutide (BI 456906) is an investigational once-weekly injectable peptide that activates both the glucagon and GLP-1 receptors; its strongest evidence comes from phase 3…
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Orforglipron FDA approval: the Foundayo timeline
Yes. The FDA approved orforglipron, sold as Foundayo, on April 1, 2026 for chronic weight management in adults with obesity, or overweight plus at…
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Mazdutide: benefits, evidence and legal status
Mazdutide (LY3305677, IBI362) is a once-weekly injected peptide that activates both the GLP-1 and glucagon receptors, approved in China since 2025 and backed by…
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Wegovy pill (oral semaglutide): benefits, evidence and legal status
The Wegovy pill is oral semaglutide 25 mg, a once-daily tablet form of the GLP-1 peptide drug in Wegovy injections. In the OASIS 4…
How we work
- Primary sources onlyEvery claim links to PubMed, ClinicalTrials.gov, the FDA, WADA or another regulator — never to sellers, forums or blogs.
- Graded claim by claimEach reported effect shows its evidence level, and animal findings are never presented as benefits for people.
- Risks as prominent as effectsSide effects, unknowns and legal status sit next to the findings, with the date we last checked them.