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.
Coming soonMost 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.
Most certificates stop at purity. This is the full panel Verifyd grades against — the disclosures a genuinely transparent, injectable-grade vendor puts on the table.
Not sure what all these tests are? Here’s what the key ones check for — and why they matter for injectable-grade material.
Two ways to use Verifyd, depending on what you've got in hand. One grades a whole vendor; the other reads a single certificate — including whether it's even real.
Paste a peptide vendor's URL and we scan their site and published COAs, then grade how transparent they are across all five pillars — a full Vendor Transparency Score out of 100.
Upload the certificate itself and we'll read it: which tests it discloses, which it skips, and which lab issued it — plus the big one: whether it's a real, verifiable document or a copy-paste job.
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.
Real Verifyd scans — identities redacted — from a Gold-standard COA down to a vendor that publishes no verifiable testing at all. Every one graded against the same standard.
Vendor and lab names are redacted in these examples. Every grade reflects verifiable facts about the certificate as checked on the report date — transparency, not product safety. See the methodology →
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 plain-English guide to reading a COA — and why the lab's name matters as much as the number.
Read →A “99% pure” number answers one narrow question — and hides the safety panels that matter most.
Coming soonHow to spot who's hiding their testing — in patterns, not guesswork.
Coming soonPaste a URL, add your email, and we'll send back a full transparency report.