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Testing & COAs

How to read peptide lab reports, spot a fake, and make sense of what independent lab tests actually find. Written from the data, not from vendors.

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Testing & COAsHow to read a peptide COA (and spot a fake one)What every line of a certificate of analysis measures, what it quietly leaves out, and the checks that separate a genuine lab report from a decorative one.Sep 28, 2026
Testing & COAsHow to get a peptide independently tested (and what to order)Ordering a test isn't complicated, but ordering the right test is. Here's what to ask for, how the major labs differ, and what happens after the report lands.Sep 28, 2026Testing & COAsPeptide suppliers and vendors: how to judge one by its lab evidenceEvery peptide supplier says its products are tested. The question is who did the testing, how often, and whether you can check it. Here's how to judge a vendor on evidence.Sep 28, 2026Testing & COAsFake peptide COAs and fake Janoshik reports: how they're made and how to catch themA certificate of analysis is only as honest as the person who typed the numbers into it. Here's how fakes get built, two real cases, and what to check before you believe one.Sep 28, 2026Testing & COAsHow to verify a Janoshik test at the sourceJanoshik's verification page does one specific thing well. Here's exactly how to use it, what a match and a non-match actually look like, and where its limits are.Sep 28, 2026