Is Tesamorelin Lab legit? An independent review
Tesamorelin Lab is on the watch list: its certificate can't be verified in its own name, one of 483 of 524 UK sellers that fail this check.
- Certificate
- none found in its own name
- Official website
- tesamorelinlab.co.uk
- Buyer reports
- Coming soon, visible from 1 November 2026 · tell us about your order
Checked daily against the seller's site, the laboratory's site and the public record. If this seller publishes new evidence, tell us and it is re-checked. Method · data · correction
What we found
Tesamorelin Lab sells tesamorelin, tirzepatide, semaglutide, retatrutide and cagrilintide for 'UK laboratory research' with fast domestic delivery. It states each order is 'accompanied by a Certificate of Analysis' and is 'third-party tested', but names no independent laboratory, shows no company number and publishes no verifiable certificate. Its own site even advises buyers to 'demand a Certificate of Analysis', advice it does not itself satisfy with anything checkable.
New As of 13 October 2026 you can leave feedback on your order. Reports are being collected now and will be shown on this page from 1 November 2026, so every seller has the same time to gather them. Written notes appear only after we have read them.
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Questions people ask about Tesamorelin Lab
Is Tesamorelin Lab legit?
Tesamorelin Lab (tesamorelinlab.co.uk) is on The Peptide Watch's watch list. It does not publish a certificate of analysis that can be independently verified in its own name, so its quality claims rest on trust rather than checkable evidence. That is not proof of a scam; it means the evidence does not check out.
Does Tesamorelin Lab publish a real, verifiable Certificate of Analysis?
Not one that can be independently verified in its own name. ⚠ 'Third-party tested', no lab named. Tesamorelin Lab says each compound is 'accompanied by a Certificate of Analysis' and 'third-party tested', but names no laboratory and shows no verifiable report.
How do I check Tesamorelin Lab's certificate myself?
Find the certificate on tesamorelinlab.co.uk and read four things: an independent laboratory is named; the client field names Tesamorelin Lab, not a supplier; the compound line names the peptide you are buying, not only a batch code; and the report opens on the laboratory's own website from its task number and key (verify.janoshik.com for Janoshik). Then compare the batch number on the report with the one on your vial. The free COA Checker on this site runs the first three checks on a photo of the certificate.