For Research Purposes Only · Not For Human Consumption

Research Peptides

Pharmaceutical-grade. Third-party verified. UK dispatched.

For Research Purposes Only · Not For Human Consumption

18 products

Before you order

How to choose a research peptide supplier

Research peptides are unlicensed compounds sold for in-vitro laboratory work. There is no regulator checking what is in the vial, so the burden of verification sits with the buyer. These are the checks worth making — of us, and of anyone else you order from.

Ask for the certificate before you buy, not after

A Certificate of Analysis should be attached to the specific lot you will receive, name the laboratory that produced it, and show the HPLC-UV purity result alongside a mass spectrometry identity confirmation. A supplier that will only send documentation after payment, or that publishes one generic certificate across every batch, is not giving you anything you can verify. Ours are published on the lab reports page and linked from each product, and our guide to reading a CoA explains what each figure means.

Understand what a purity figure does and does not tell you

A ≥98% HPLC result means 98% or more of the peptide-related material in the vial is the declared compound. It is a statement about that batch only, and it says nothing on its own about identity — that is what mass spectrometry is for. Purity and identity are two separate tests, and a certificate showing only one is incomplete. We reject any lot below our 98% floor rather than discounting it; the testing and rejection criteria are published in full.

Cold chain matters more than most suppliers admit

Lyophilised peptides are stable at room temperature for short periods, but repeated warming degrades them. Vials should ship insulated, and go into a −20°C freezer on arrival. Once reconstituted with bacteriostatic water, most peptides keep for around 28 days refrigerated at 2–8°C and should never be refrozen. Our reconstitution calculator works out solvent volumes for any vial size in the catalogue.

Check who you are actually buying from

A named trading entity, a company registration you can look up, a real dispatch address and a monitored email are the minimum. Anonymous checkout forms and overseas drop-shipping leave you with no recourse if a lot is wrong. We dispatch from Manchester, publish our company number, and answer technical questions about a batch before you order — see who we are or contact us.

Every compound listed here is supplied strictly for in-vitro laboratory research. None is a licensed medicine, none is approved by the MHRA for human or veterinary use, and buyers must be 18 or over.