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

Pepspan (pepspan.com) 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 Pepspan 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 Pepspan

Unlike Pepspan, each seller below has been checked to actually publish the Janoshik report they reference, in their own name. A selection of six is shown here; the full ranked list of 41 is linked underneath.

1. Peptideprime peptideprime.co.uk · own-name Janoshik COA May 2026
2. Peptidesresearch peptidesresearch.uk · own-name Janoshik COA May 2026
3. Peptifyuk peptifyuk.com · own-name Janoshik COA May 2026
4. Momentumpeptides momentumpeptides.com · own-name Janoshik COA May 2026
5. Unionbiolabs unionbiolabs.com · own-name Janoshik COA Apr 2026
6. Xlpeptides xlpeptides.com · own-name Janoshik COA Apr 2026

Full ranked list: the 41 independently-tested UK vendors. Read the complete Pepspan audit, or check any shop with the free COA Checker.