March 2026Peptide Sciences shut down by FDA. Full breakdown
COA Verification Guide
A COA Is Only As Good As the Lab
That Wrote It.
And a lot of labs did not write the ones you've been given. Every peptide vendor will hand you a Certificate of Analysis. Most will look official. Many are internal documents the vendor made themselves. Some are the same document copy-pasted with different dates. Here is how to tell the difference in under five minutes.
The 7-Point COA Checklist
Check each item your COA passes. Your live score updates below.
0/7
Walk Away
This is not a vendor to trust with anything that ends up in your body.
The Two-Minute Check
If a vendor says they use Janoshik:
- 1Find the batch reference ID (on the product page or COA PDF)
- 2Go to janoshik.com
- 3Enter the ID in their search
- 4See the actual lab results — date, compound, purity, method
If the ID doesn't exist on Janoshik's database, something is wrong.
If there is no ID at all, the claim is unverifiable.
If the results don't match what the vendor told you, you know what that means.