Every batch is analysed by reverse-phase HPLC against a certified reference standard at an ISO 17025-accredited third-party lab. The figure we publish is the purity by area-under-curve from that specific lot — not a manufacturer average.

Yes. Every product page links to the CoA for its current batch, and you can look any batch code up directly on our testing page.

Lyophilised peptides are kept cold and shielded from light to limit photodegradation, stored at our London facility, and dispatched in insulated, cold-chain packaging with next-day courier as standard.

We supply registered laboratories, research institutions and qualified individual researchers. All products are sold strictly for laboratory research use — not for human or veterinary use, and not for internal, topical or any other form of consumption.