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

By Jamie, Editor · The Peptide Watch · updated 18 August 2026

Synedica (synedica-uk.shop) does not publish a certificate of analysis you can verify in its own name. If that is why you are looking for an alternative, the UK sellers further down do, so you can check the testing yourself before you buy. The Peptide Watch takes no vendor money and links to no seller's shop.

Why Synedica is on the watch list

Synedica (synedica-uk.shop) is the brand's storefront selling Synedica-branded retatrutide, semaglutide and NAD+ with GBP pricing, a UK phone line and free UK shipping, but names no laboratory and publishes no verifiable certificate. Same brand as synedicapeptides.co.uk.

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 30 is linked underneath.

  1. Kensingtonlabs kensingtonlabs.co.uk · own-name Janoshik COA including NAD+, Jul 2025
  2. Peptifyuk peptifyuk.com · own-name Janoshik COA including NAD+, May 2026
  3. Incline Peps inclinepeps.co.uk · own-name Janoshik COA including Retatrutide, Jul 2026
  4. Lab77Peptides lab77peptides.co.uk · own-name Janoshik COA including Retatrutide, Jun 2026
  5. Peptology Labs peptologylabs.uk · own-name Janoshik COA including Retatrutide, Jun 2026
  6. Biohacklondon biohacklondon.com · own-name Janoshik COA including Retatrutide, Jun 2026

Full ranked list: the 30 independently-tested UK vendors. Read the complete Synedica audit, or check any shop with the free COA Checker.