Next Day Peptides is a UK lab built around one of the most consequential research questions of the decade — how GLP-1 family agonists reshape appetite, adiposity and metabolism. We make the compounds the field is studying, to the purity the field requires, and we ship them the next morning.
Semaglutide. Tirzepatide. Retatrutide. Cagrilintide. In a decade these four peptides have moved from obscure incretin research to the front of every metabolic, cardiology and obesity journal on the planet. Weekly trial readouts. Cardiovascular endpoints. Liver, kidney, sleep, Alzheimer’s. The literature is moving faster than the supply chain.
We started NDP because researchers, independent labs and university groups kept ending up with vials that arrived warm, lots that arrived without a CoA, or orders that never arrived at all. There was a gap between what the science needed and what the market was shipping. We built into that gap.
We focus deliberately. A small, deeply-validated range is more useful to a working researcher than a sprawling catalogue.
Every vial in our range is reconstituted, lyophilised and packed in our own facility in the United Kingdom — not drop-shipped, not relabelled, not white-labelled from a broker in another time zone. That control is what lets us guarantee batch consistency, vial weight tolerance, and the cold-chain conditions the molecules require.
Lot-specific certificates of analysis are available on request for every product we sell. HPLC purity, mass spec confirmation, endotoxin testing — the data that makes a result reproducible.
Orders placed before 16:00 Monday to Friday leave the lab the same afternoon by Royal Mail Tracked 24. Most UK customers receive their vials the next working day.
Everything NDP supplies is sold strictly for in vitro and laboratory research use. Our products are not medicines. They are not licensed, prescribed, or supplied for human or veterinary use, and we do not provide dosing guidance, clinical advice, or onward distribution to consumers.
If you are a researcher, an independent lab, a university group, a journalist studying the field, or a clinician sourcing reference standards for analytical work — you are exactly who we are here for. If you are looking for a medicine for yourself, please speak to a doctor.
Email the lab directly. We answer ourselves — no ticket queue, no offshore inbox.