A supplier, not a marketer

PNW Peptides was started by two analytical chemists who spent years buying reference materials that arrived with a one-line specification sheet and no traceable lot record. The work of verifying what was actually in the vial fell to the buyer.

We built the company we wanted to buy from. Our catalogue is intentionally small so that each item can be fully characterised, independently tested, and documented in a way a reviewer would accept. When a lot does not meet specification, it is not released.

We serve laboratories, university groups, and contract research organisations. We do not advise on experimental design or applications, and we make no representations about biological activity or effects. Our responsibility begins and ends with well-characterised material, honest paperwork, and reliable handling.