Alternatives to Nupex in the UK: sellers you can actually verify

Nupex (nupex.co.uk) is on The Peptide Watch's watch list. What its certificate shows, and why it cannot be verified in its own name, is set out in the Nupex audit. This page answers the other half of the question: which UK sellers do publish a certificate you can check yourself before you buy. The Peptide Watch takes no vendor money and links to no seller's shop.

Verified alternatives to Nupex

Unlike Nupex, each seller below has been checked to name the exact independent laboratory (Janoshik) and let you look the report up yourself. A selection of six is shown here; the full ranked list of 40 is linked underneath.

1. Liverpool Advanced Biosciences (LAB.LTD) lab.ltd · own-name Janoshik COA Jun 2026
2. Kingston Peptides kingstonpeptides.com · own-name Janoshik COA Jun 2026
3. Simplypeptides simplypeptides.co.uk · own-name Janoshik COA May 2026
4. Kensingtonlabs kensingtonlabs.co.uk · own-name Janoshik COA May 2026
5. Reta24 reta24.co.uk · own-name Janoshik COA May 2026
6. BioVanta Research biovantaresearch.com · own-name Janoshik COA May 2026

Full ranked list: the 40 independently-tested UK vendors. Read the complete Nupex audit, or check any shop with the free COA Checker.