Research-literacy siteEducational evidence reviews only — not medical advice, not dosing guidance, not a protocol for human or animal use. Medical disclaimer.

Peptide Evidence Strength Checker

Select the characteristics of the evidence available for a claim, and get an A–X evidence grade with explanation and cautions.

Human RCT(s) available?

Human observational / PK data available?

Animal data available?

In vitro data only?

Direct combination studies (not just monotherapy)?

UK/EU/US regulatory approval for the specific use?

Independent replication?

This is an educational heuristic, not a peer-review process. Read more on our evidence-grading methodology page.