Tesamorelin is a synthetic analogue of human growth-hormone-releasing hormone (GHRH 1-44) carrying a trans-3-hexenoyl modification, supplied as a lyophilised powder. It is supplied strictly for laboratory research use only.

What research area is Tesamorelin associated with?

Published preclinical laboratory work in this class concerns GHRH receptor signalling chemistry. We supply the material only; we make no representation as to any outcome, effect, or suitability for any purpose.

Is Tesamorelin approved for human use?

No. Tesamorelin is not a drug, supplement, food, cosmetic, or medical device, and has no approved human or veterinary indication. It is sold strictly for in-vitro laboratory research use by qualified professionals.

What purity is Tesamorelin supplied at, and how is it verified?

Each lot is assayed by HPLC and ships with its own lot-specific Certificate of Analysis, published in our COA registry. Purity figures are stated per lot - we do not publish a brand-wide specification in place of the actual certificate.

Tesamorelin

Stabilised GHRH(1-44) analogue, supplied for laboratory research use only.

99.92% pure on this exact lot, verified by an independent lab, not by us
Tested in the USA. Ships within 1 business day, stored frozen, stable at room temperature until you mix it
Retest it at any lab. If it doesn't match our report, every dollar back

$119/ 10mg vial

$59.50 per vial with Buy 1, Get 1 Free

Buy 1, Get 1 Free· add 2, applied automatically

99.92% pure on this exact lot, verified by an independent lab, not by us
Tested in the USA. Ships within 1 business day, stored frozen, stable at room temperature until you mix it
Retest it at any lab. If it doesn't match our report, every dollar back

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All products currently listed on this site are for research purposes only.

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Proof, not promises. Every batch, tested by an outside lab.

Every batch of Tesamorelin is tested by an outside lab before it goes on sale — not by us. The one shipping now is lot ERWAU3: 99.92% pure by HPLC, tested by Freedom Diagnostics on 12 Oct 2026. The signed report is right here. Purity is the number the lab measured, never “at least 99” — and a batch that misses its spec never ships.

Tesamorelin · 10mgLot ERWAU3Live batch data

Purity99.92%

Passed

Tested by: Freedom Diagnostics
Tested on: 12 Oct 2026
Net content: 8.87 mg

Contaminant screens

Heavy metalsEndotoxinsMicrobialSolvents

See all lab reports

What happens before a vial reaches you

1Made in a controlled facilityDocumented, repeatable steps for every batch.
2Purity testedAn outside lab measures it and reports the exact number.
3Identity confirmedA second test proves it is what the label says.
4Report publishedSigned, filed by lot number, and public before the vial ships.

Live batch data

Freedom Diagnostics

Independent analytical lab

Certificate of Analysis

RESULT · PASS

Lot ERWAU3Verified

Tesamorelin 10mg

HPLC purity

99.92%

Pass · Meets spec

Tested

12 Oct 2026

HPLC-UV + LC-MS

Analytical results

Identity (LC-MS)ConfirmedPASS

Net content8.87 mgPASS

HPLC Chromatogram

Main peak 99.92% · other 0.08%

Alex JohnsonPrincipal Chemist

Authentichain · Verified 121×

GHRH receptoragonist

Visceral fattargeted

IGF-1 / livermetabolic

How Tesamorelin works

A GHRH analogue studied for prompting growth hormone with a notably targeted effect on visceral fat.

GHRH receptoragonist

Studied for binding the GHRH receptor to prompt natural, pulse-like growth-hormone release.

Visceral fattargeted

Investigated in trials for shrinking deep visceral fat while sparing surface fat and insulin sensitivity.

IGF-1 / livermetabolic

Researched for downstream IGF-1 signalling and effects on hepatic lipid pathways.

For research use only. Mechanisms described reflect published research literature.

Every batch we've tested

Anyone can show you one good report. Here is every batch of Tesamorelin we have ever released, newest first, each with its own signed report. Nothing hidden, nothing cherry-picked.

9 batches on record · latest tested 12 Oct 2026

All lab reportsEvery Tesamorelin batch, on one page.The full testing history with every signed report. No login, no email wall.See all lab reports

What the studies found

Published findings on this compound, each linked to its source. Animal and lab results are context, not claims about this product.

Visceral fatClinical

−15.2%

In a 412-person randomised trial in people with HIV-associated fat accumulation, visceral fat fell 15.2% over 26 weeks while it rose 5.0% on placebo.

vs baseline at 26 weeks

New England Journal of Medicine, 2007 · randomised trial, 412 patients

TesamorelinBaseline reference

Approximate trajectory; deep visceral adipose tissue relative to baseline.

Surface fat sparedClinical

While deep visceral fat dropped, trials reported no matching reduction in surface (subcutaneous) fat — suggesting the effect was targeted rather than general fat loss.

visceral vs subcutaneous

Visceral fatreduced

Subcutaneous fatno change

Relative direction of change; subcutaneous fat was not meaningfully reduced.

Dhillon S, Drugs 2011

IGF-1 responseClinical

+81%

In the same trial, IGF-1 — the marker that tracks growth-hormone activity — rose 81% on tesamorelin and fell 5% on placebo.

vs baseline

Direction of change; reported IGF-1 rise following pulsatile GH release.

New England Journal of Medicine, 2007 · randomised trial, 412 patients

Full research pages: Tesamorelin vs Sermorelin vs Ipamorelin: What the Evidence Shows, Tesamorelin explained: the peptide with real human trials behind it