Someone sends you a Certificate of Analysis. Maybe it is from us, maybe it is from another vendor. The question is the same: did a real lab run this test, or is it just a PDF?
You do not need to be a chemist to answer that. You need the lab's own verification tool and about sixty seconds.
Verify our tests (fastest path)
Every batch we ship is tested by Janoshik Analytical before it goes on sale. To confirm any Validated Peptides report:
- Open our Certificate of Analysis page and find your compound. Match the lot on your vial to the report title, then open the PDF.
- On the report, find the Task number and Unique key. Both are printed on the certificate, usually near the bottom.
- Go to janoshik.com/verification, enter both values, and click Verify.
- Janoshik loads the original report from their servers. Check that the compound name, purity figure, and sample date match what you see on the PDF.
That is it. You are looking at Janoshik's record, not our copy of it.
Method 1: Janoshik
Janoshik is the most widely used independent peptide testing lab in the research supply market. Most vendors who actually test use them. Every authentic Janoshik report includes a Task number, a Unique key, and often a QR code that links directly to verification.
How to verify: Enter the Task number and Unique key at janoshik.com/verification. You can also browse public results at public.janoshik.com if the vendor authorized public listing.
What to match: compound identity, purity percentage (exact, no rounding differences), and sample-receipt date. If any of those do not line up, the PDF is not authentic.
Method 2: Freedom Diagnostics
Freedom Diagnostics is a US-based lab used by many research peptide suppliers. They maintain a public lookup with over 40,000 searchable COAs.
How to verify: Go to the Freedom Diagnostics COA lookup page and search by one of three fields:
- Search Code: the first four characters of the company name on the COA, followed by the accession number. Example:
ABCD2603170030where ABCD is the company prefix and 2603170030 is the accession. - Accession number alone: enter the full accession from the report header.
- Company name: search by the full company name as printed on the COA to see all reports on file.
Codes are not case-sensitive. Remove spaces before searching. Click Open PDF on any matching result and compare it to the document you have.
Method 3: Other labs
Not every lab runs a public portal. Two others you will see on peptide COAs:
MZ Biolabs (Arizona) issues HPLC and mass spectrometry reports for many vendors. They do not maintain a public lookup page. Email the lab with the report number and issue date and ask them to confirm the record exists. A real report gets confirmed in minutes. A forged one does not.
Colmaric Analyticals (US) runs similar identity and purity panels. Verification is also by direct contact: send the report ID and date to the lab and ask for confirmation.
Same principle everywhere. You are not checking whether the vendor says the test is real. You are checking whether the lab that supposedly ran it agrees.
The three-field rule
Regardless of which lab issued the COA, the check is always the same. Pull up the record on the lab's own system (or get written confirmation from the lab), then confirm three things:
- Compound: the molecule name on the lab record matches the COA and your product label.
- Purity: the headline purity figure matches exactly. Real lab records do not round differently from the certificate.
- Date: the sample-receipt or test date on the lab record matches the COA within a day or two.
Then match the lot or batch number on the COA to the lot printed on your vial. A verified COA for Batch A tells you nothing about Batch B.
Vendor PDFs are not verification
We publish every Validated Peptides report on our COA page and every one of them verifies on Janoshik. Grab the keys, look them up, and decide for yourself.