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

By Jamie, Editor · The Peptide Watch · updated 20 October 2026

Synedica (synedica-uk.shop) 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 Synedica 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 Synedica

Unlike Synedica, each seller below has been checked to name the exact independent laboratory (Janoshik) and let you look the report up yourself. Sellers whose verified certificates cover what Synedica sells are listed first; the full ranked list of 40 is linked underneath.

  1. UKMAXX ukmaxx.co.uk · own-name Janoshik COA including NAD+, Sep 2026
  2. Kensingtonlabs kensingtonlabs.co.uk · own-name Janoshik COA including NAD+, May 2026
  3. Peptifyuk peptifyuk.com · own-name Janoshik COA including NAD+, May 2026
  4. Xlpeptides xlpeptides.com · own-name Janoshik COA including NAD+, Apr 2026
  5. Clinicore clinicore.co.uk · own-name Janoshik COA including NAD+, Feb 2026
  6. Lab77Peptides lab77peptides.uk · own-name Janoshik COA including Retatrutide, Sep 2026

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