How to read a compounding pharmacy certificate of analysis
Aug 2026
A certificate of analysis is the pharmacy’s record that a lot met the tests they ran: identity, potency, sterility, or endotoxin, depending on the preparation. It is not a marketing badge.
Ask which laboratory ran the test, which lot the certificate belongs to, and whether the preparation you received is that lot. A certificate for a research chemical from an unknown site is a different document from a 503A pharmacy record.
Reign Med does not sell research-grade or overseas peptides. Prescriptions go to a licensed US compounding pharmacy. The certificate, when you want it, comes from that pharmacy.