Purity Isn't Proof: What a Peptide COA Actually Tells You
A “99% pure” number answers one narrow question — and hides the safety panels that matter most.
Read →Most peptide COAs test one thing — purity. Verifyd scans a vendor's site and certificates and grades how much they truly disclose: heavy metals, endotoxins, sterility, and the safety panels most vendors quietly skip.
Our benchmark Every scan compares a vendor's published COA against one standard — the full panel of tests we believe should be the industry standard for injectable-grade research peptides — then shows exactly where they meet it and where they fall short.
Consumers see the word "COA" and assume "safe." But most certificates only show HPLC purity — while the panels that actually matter for injectable-grade material go untested and undisclosed.
Two real examples — one that publishes almost nothing verifiable, and one with strong, checkable testing.
Verifyd Index scans research-use-only peptide vendors and grades one thing: what they disclose about their testing, and how independently verifiable it is. We come from inside this industry — which is exactly why we know how much a single “99% purity” number can hide.
We don't sell peptides, and a grade is never for sale. The whole point is a standard that can't be bought — applied the same way to every vendor, so consumers finally have something they can trust.
The grade can't be paid for. The same rubric applies to every vendor.
We grade what's disclosed and verifiable — never product quality or safety.
Educational context only. We don't endorse the human use of research chemicals.
Plain-English guides to peptide testing, transparency, and what a certificate of analysis actually proves.
A “99% pure” number answers one narrow question — and hides the safety panels that matter most.
Read →Identity, purity, content — and the tests most certificates quietly leave out.
Read →How to spot who's hiding their testing — in patterns, not guesswork.
Read →Paste a URL, add your email, and we'll send back a full transparency report.