PeptideCOA
Free resource
The peptide verification guide
How to read a COA end to end, judge an independent ISO/IEC 17025 lab, and spot a faked certificate. Direct download — no form, no signup.
Download the guide (PDF)No form · No signup · Free
Next step — selected supplier
If you want to go further in your research, we have selected one supplier against the same criteria as this guide: a per-lot COA, an independent accredited lab, and ≥98% purity.
See the selected supplier →Affiliate link — we may earn a commission at no extra cost to you. Research-only. Consult a physician before any use.
Information only.
We do not sell products and do not give medical advice. Consult a licensed physician or healthcare professional for any health question. Framing: international standards (WHO, ISO/IEC 17025, pharmacopeial methods). Updated July 2026.
We do not sell products and do not give medical advice. Consult a licensed physician or healthcare professional for any health question. Framing: international standards (WHO, ISO/IEC 17025, pharmacopeial methods). Updated July 2026.