Talk to someone who understands the chemistry.

A COA is the lab’s signed report on a specific lot. Ours covers eight assays: purity, net peptide content, identity, appearance, fentanyl screen, heavy metals, sterility, and endotoxin. The two that matter most are purity and identity — purity tells you the sample is 99%+ of something, identity confirms it is 99%+ of the compound you ordered. A certificate without identity testing is not telling you very much.

Every batch, without exception. Our lot register is public and the count of lots shipped without published testing is zero. If we cannot publish a certificate for a lot, we do not sell that lot.

Lyophilised peptides are stable at room temperature during transit and should be stored at -20°C for long-term storage. Once in solution, store at 2-8°C, protect from light, and avoid freeze-thaw cycles. Full storage guidance is on every product page.

No. Every product sold here is supplied strictly for laboratory research use by qualified professionals. They are not for human, veterinary, or food use in any form, and are not approved by the FDA for any purpose. Purchasing requires you to confirm you are a qualified researcher and will use the material in accordance with all applicable laws.

Unopened vials in original packaging can be returned within 30 days. If a lot fails to match its published certificate we replace it or refund it in full, no questions asked.