"Do peptides work" is the wrong question, and it is why the answer online is always unsatisfying. "Peptide" is a chemical category, not a treatment — insulin is a peptide, and so is a compound with no human research behind it. Asking whether peptides work is like asking whether pills work.
The answerable question is narrower: for this specific compound, has anyone run a registered human trial, and what were they testing? That has a factual answer, and we publish it for all 35 compounds we track.
What the register shows right now
- 35 compounds tracked, covering 1225 registered interventional human trials
- 12 of them have zero registered human trials — nothing in the registries we track
- 6 are FDA approved, and each only for a specific indication, not for general use
The compounds with the most registered human research are Semaglutide (610), Tirzepatide (234), Thymosin α1 (63). The full register lists every compound with its count and a link to each trial record.
Zero trials is a statement about evidence, not about the compound
This is the distinction the whole site rests on. Absence of evidence is not evidence of absence. A compound with no registered trials has not been shown to fail — it has not been formally tested in people and the result registered. That is a statement about the evidence, not about the molecule.
What it does mean: any confident claim about what that compound does in humans is not resting on registered human research. You are entitled to know which situation you are in before you decide anything.
Are peptides FDA approved?
Some are; most sold online are not. 6 of the 35 compounds here have an FDA approval, and an approval always covers a specific condition — not everything the compound is marketed for. See which peptides are FDA approved.
Compounds sold as "research use only" have no FDA approval. That phrase describes the seller's legal position, not the product's quality or safety.
How to check any specific compound
- Search the register — every compound, with its trial count
- Peptides with no registered human trials
- Studies recruiting now
- How we count — what we include and what we leave out
We sell nothing. No products, no affiliate links, no money from sellers or clinics. The numbers come from ClinicalTrials.gov and every one links to its source. This is automated aggregation — no physician has reviewed these pages, and nothing here is medical advice.