Where to buy Tesamorelin in the UK: the sellers with a verifiable COA

The newest verifiable Tesamorelin certificate on any UK seller's website is on Lab77Peptides (lab77peptides.uk), analysed 29 Sep 2026 (task #231376 on Janoshik's site); 12 verified sellers hold one covering Tesamorelin, listed newest first below.

Who holds the newest Tesamorelin report (12 verified UK sellers)

Newest report first. Every report was opened on Janoshik's own website and names the seller as the client. The date is the analysis date printed on the report. The verify link opens the laboratory, never the shop. Audit findings, not recommendations.

A record of paperwork, not a recommendation: The Peptide Watch sells nothing, takes no money from sellers and links to none of them.

Why the date matters · What purity means · What Tesamorelin is · Regulators · Every report

Why the date on a certificate matters

What a purity figure means

The purity on a Janoshik report is the share of the main peak in an HPLC chromatogram. 99.5% means that 99.5% of what the detector saw was one substance and 0.5% was something else. It is not the amount in the vial: that is the separate quantity line, in milligrams. It does not by itself prove which substance the peak is: that is identity, confirmed by mass spectrometry. And it says nothing about sterility, endotoxins or heavy metals, which are separate tests.

A purity figure printed on a shop page with no report behind it is a claim, not a measurement. Between two reports, the difference that matters is rarely 99.2% against 99.8%; it is whether the report exists at all, names the seller as the client, covers this compound on its own, and is recent.

What Tesamorelin is, and what it is sold as

Tesamorelin is a synthetic analogue of growth-hormone-releasing hormone (GHRH) studied in metabolic research. Because the cheaper, shorter GHRH-family peptides sermorelin and CJC-1295 are common relabelling targets, an identity test (mass spectrometry) confirming the actual compound matters as much as the purity figure.

An approved medicine in the United States, for one narrow use. Tesamorelin is Theratechnologies' Egrifta, approved by the FDA in November 2010 to reduce excess abdominal fat in adults with HIV-associated lipodystrophy, with a weekly formulation approved in 2025. PubMed indexes 104 papers, 24 of them clinical-trial reports; ClinicalTrials.gov lists 24 registered trials.

Not in Europe. Theratechnologies withdrew its European application on 22 June 2012, citing the lack of long-term safety data on raised IGF-1 and the absence of a cardiovascular endpoint. It has never been licensed in the UK or EU.

The evidence is for the licensed product in that population. Nothing in the trial record supports use in healthy adults, and none of it says what is in a research-chemical vial; only a verifiable certificate does that.

What regulators say about Tesamorelin

In the UK. Not licensed in the UK or EU. Sold as a research chemical.

We hold no statement from the FDA, MHRA or EMA specifically about Tesamorelin on file. Its development and licence sources are listed under the record above.

What the 13 Tesamorelin certificates show

We have read 13 Janoshik reports covering Tesamorelin, published by 12 UK sellers. Each was opened on Janoshik's own website. All 13 name the seller itself as the client. 8 of the 13 are dated within the last six months and 1 is more than a year old. The newest is dated 29 Sep 2026 and the oldest 28 Jan 2025.

All 13 reports give a purity figure for Tesamorelin. The figures run from 96.078% to 99.704%, and 6 of the 13 are at 99% or above. A purity figure describes the sample the laboratory received, not every vial from that batch.

Read directly from the newest reports: Lab77Peptides: task #231376, analysed 29 Sep 2026, 10.36 mg recovered at 98.241%, client Lab77peptides.uk; Mercia Research: task #231798, analysed 17 Sep 2026, 7.05 mg/ml at 96.470%, client Mercia Research Limited; Peptology Labs: task #230188, analysed 10 Sep 2026, 10.89 mg recovered at 98.429%, client Peptology Labs.

A certificate is a batch document. The lines that matter are the compound (it must say Tesamorelin, not only a batch code), the client (the shop, not its supplier) and the analysis date. A new batch is untested until a new report appears.

Tesamorelin in the UK at a glance

Counted from the vendor ledger at build time. The A-Z directory lists every seller and what each publishes instead.

Questions people ask

The Peptide Watch's position on Tesamorelin

Not licensed in the UK or EU. Sold as a research chemical. The Peptide Watch reads the certificates UK sellers publish and does not recommend anywhere to buy Tesamorelin. Sellers on this page are listed by the date of their newest Tesamorelin certificate and by nothing else. If you can verify a seller's testing, you can at least judge its evidence; if you cannot, you are taking the seller's word for what is in the vial. See how UK testing compares across every seller in the market statistics.

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