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Alternatives to Proforma Peptides in the UK: sellers you can verify

By Jamie, Editor · The Peptide Watch · updated 10 July 2026

Proforma Peptides (proformapeptides.co.uk) does not publish a certificate of analysis that can be verified in its own name, so if you want a UK research-peptide seller whose testing you can check yourself, the verified alternatives are below. The Peptide Watch takes no vendor money and links to no seller's shop.

Proforma Peptides is the cleanest of the non-Janoshik sites: it commissions genuine Certificates of Analysis from Analiza Białek, a real independent lab, with itself as the client. The only mark against it is that it's Analiza, not the Janoshik standard this index is built on, so it sits just outside the independently-tested list rather than among the bad actors. Aggravating: the reports seen are dated September 2025 and served from personal Dropbox links.

UK sellers with a verifiable own-name Janoshik certificate (28)

  1. Lab77Peptides lab77peptides.co.uk · own-name Janoshik COA Jun 2026
  2. Peptology Labs peptologylabs.uk · own-name Janoshik COA Jun 2026
  3. Biohacklondon biohacklondon.com · own-name Janoshik COA Jun 2026
  4. Velonix Labs velonixlabs.co.uk · own-name Janoshik COA Jun 2026
  5. Peptide Biosciences peptide-biosciences.com · own-name Janoshik COA Jun 2026
  6. Peptifyuk peptifyuk.com · own-name Janoshik COA May 2026
  7. Biohackpeptides biohackpeptides.co.uk · own-name Janoshik COA May 2026
  8. Peptideprime peptideprime.co.uk · own-name Janoshik COA May 2026
  9. Momentumpeptides momentumpeptides.com · own-name Janoshik COA May 2026
  10. Peptidesresearch peptidesresearch.uk · own-name Janoshik COA May 2026
  11. Reta24 reta24.co.uk · own-name Janoshik COA May 2026
  12. Intel Peptides intelpeptides.com · own-name Janoshik COA May 2026
  13. Phoenixbiolabs phoenixbiolabs.net · own-name Janoshik COA Apr 2026
  14. Bodylab Store bodylabstore.co.uk · own-name Janoshik COA Apr 2026
  15. Unionbiolabs unionbiolabs.com · own-name Janoshik COA Apr 2026
  16. Ck Peptides ck-peptides.com · own-name Janoshik COA Mar 2026
  17. Xlpeptides xlpeptides.com · own-name Janoshik COA Mar 2026
  18. Ascendpeptidesuk ascendpeptidesuk.com · own-name Janoshik COA Mar 2026
  19. Regenix Peptides regenix-peptides.co.uk · own-name Janoshik COA Mar 2026
  20. Wolverinepeptides wolverinepeptides.co.uk · own-name Janoshik COA Feb 2026
  21. Tested Peptides testedpeptides.co.uk · own-name Janoshik COA Jan 2026
  22. Alluvi Health Care buyalluvi.co.uk · own-name Janoshik COA Oct 2025
  23. Thoroughbredlabs thoroughbredlabs.co.uk · own-name Janoshik COA Sep 2025
  24. Britpeptides britpeptides.co.uk · own-name Janoshik COA Sep 2025
  25. BuyRetatrutide buyretatrutide.net · own-name Janoshik COA Sep 2025
  26. Kensingtonlabs kensingtonlabs.co.uk · own-name Janoshik COA Jul 2025
  27. Imperialpeptides imperialpeptides.co.uk · own-name Janoshik COA 2025-2026
  28. Simplypeptides simplypeptides.co.uk · own-name Janoshik COA various

See the full Proforma Peptides audit, the independently-tested list, or check any shop with the free COA Checker.