Are Product COAs (Certificates of Analysis) included?

Yes. Every batch we sell has its own Certificate of Analysis, and you can view and download the one that matches your exact batch.

We do not issue generic or representative paperwork. Each batch is released against its own certificate, so the results you are looking at are for the batch in your hands.

What is on the certificate

Every certificate lists the tests the outside lab ran on that batch. New batches, tested since August 2026, carry all 15 tests:

• Identity: is it the right compound (HPLC-UV/VIS)
• Chromatographic purity (HPLC-UV/VIS)
• Net peptide content, and whether it matches the amount on the certificate
• Consistency between vials
• Adulterant screen
• Heavy metals: arsenic, cadmium, chromium, lead, mercury (ICP-MS)
• Bacterial endotoxins (LAL)
• Residual solvents (GC-MS)
• Residual trifluoroacetic acid, TFA (ion chromatography)
• Container-closure integrity
• Solubility
• Sterility, USP 71, at Vanguard Laboratory
• Sterility, rapid method (ScanRDI), at Eagle Analytical
• The lab's own quality sign-off

Earlier batches were tested to our earlier standard, 7 to 14 tests. The certificate shows exactly which tests that batch had; a row that says "Not on this report" was not run on that batch. How the panel grew, with dates, is in "How has your testing changed?".

Testing is performed by independent ISO/IEC 17025-accredited laboratories. Finished product is made under cGMP-aligned quality systems.

How to find your certificate

Scan the QR code on your vial, or sign in and open the product page or the Certificates library. Match the batch number printed on your vial to the certificate to confirm you are viewing the results for the batch you received.

If you cannot locate the certificate for your batch, email hello@peptidology.co or call/text (480) 974-4660 and we will send it right over.

For research use only. Not intended for diagnostic or therapeutic use.

Updated on: 20/09/2026