A supplier that keeps records
Northwest Peptides supplies research-grade peptides to researchers in the United Kingdom. We are new, we are small, and we would rather be checkable than impressive.
What we supply
Lyophilised research peptides and sterile diluent, held in the UK, dispatched by Royal Mail Tracked 24 to UK mainland and Northern Ireland. Orders placed before 12:00 on a working day are dispatched the same day.
Everything we sell is supplied for in-vitro laboratory research and analytical reference use. Nothing we sell is a medicine, and nothing we sell is for human or veterinary use.
How we talk about our products
We describe what a compound is — its classification, its sequence where established, its mass, its handling requirements. We do not describe what it does in a person, we do not publish dosing, and we do not carry customer accounts of personal use. That is not caution for its own sake: a research supplier that markets outcomes is not a research supplier, and the distinction matters both legally and practically.
Where our testing stands
Our opening batches are with an independent laboratory now, with certificates due 27 August 2026. Our assay ledger tracks every batch and its current state, and each certificate is published against the batch number printed on the vial — so you can always check the paperwork against what you actually received.
You will not find customer reviews, press logos or awards on this site yet. When we have them they will be real and attributable — we would rather show you the ledger than borrowed credibility.