Each strength we sell has its own lots, and each lot has its own certificate of analysis (COA). The product page links to the certificate for each strength, where one is available. The QR code on each vial opens the record for the lot that vial came from.
What a certificate covers
A certificate of analysis is the laboratory’s report for one lot. It names the laboratory and the test date, and its results apply to that lot only. A 10 mg vial and a 20 mg vial of the same compound come from different lots, with different certificates.
Every lot is tested for identity, mass, and purity.
On the vial
Each vial label carries a lot number and a QR code. Scanning the code opens the public record for that lot. No account is needed.
If the code will not scan, add /batch/ and the lot number to the address of this website.
Questions about a lot
Use the contact page, and include the lot number printed on the vial.