Peptide vendors

Every vendor we can track, with what is publicly known about their testing. A COA is the vendor’s own claim; “independent test” is a rating from third-party lab testing (Finnrick) where it exists. Notes come from secondary sources and are often unverified — treat them as leads, not findings.

Vendors are listed only if they have no serious red flags, don’t fail independent testing, and either claim to publish COAs or have an independent rating of 60%+. See the methodology for details.