Tesamorelin

What is tesamorelin?

Tesamorelin is a synthetic analog of growth hormone releasing hormone, and it works through a completely different mechanism from the GLP-1 family it often sits beside. Rather than acting on appetite signalling, it stimulates the pituitary to release growth hormone through the body's own regulatory pathway.

Its distinguishing feature in the research literature is specificity of target. Tesamorelin has been studied in direct relation to visceral adipose tissue, the deep abdominal fat surrounding organs, rather than against total body mass.

Tesamorelin research applications

Published research has focused on visceral fat reduction, growth hormone axis signalling, and metabolic parameters associated with abdominal adiposity. That focus makes it relevant to research on the metabolic changes associated with declining estrogen, since visceral accumulation increases through the menopausal transition.

It is also studied comparatively against sermorelin, another GHRH analog, on the basis of stability and duration of action.

How tesamorelin works

Growth hormone releasing hormone is produced in the hypothalamus and signals the pituitary to release growth hormone in pulses. Tesamorelin is a stabilised analog of that signal, designed to resist the rapid degradation that limits native GHRH.

Because it acts upstream on the body's existing regulatory loop rather than supplying growth hormone directly, the pulsatile release pattern and its feedback controls are preserved. That distinction is the main reason GHRH analogs are studied separately from exogenous growth hormone.

Buy tesamorelin: specifications

Sermorelin vs tesamorelin

We stock tesamorelin and not sermorelin, and say so plainly rather than steering the comparison. The longer version is in our guide to peptides for weight loss for women.

Reconstitution and handling

Tesamorelin is supplied lyophilized and reconstituted with bacteriostatic water. Add diluent slowly against the vial wall, allow the powder to dissolve undisturbed, and avoid shaking. Bacteriostatic water is available separately.

Storage and stability

Store lyophilized vials at minus 20 degrees Celsius away from light. Reconstituted solution requires refrigeration and has a shorter usable window. Do not freeze and thaw repeatedly.

Certificate of analysis for every batch

Independent third-party testing on every batch, HPLC purity to a minimum of 98% and identity confirmed by mass spectrometry, with the certificate published at our research page before you buy.

Why researchers buy tesamorelin from Healio

Batch certificates published in advance, independent testing rather than in-house, US dispatch with cold-chain handling, and a catalog built around research relevant to women. Tesamorelin also appears in our writing on anti-aging peptide research, since the growth hormone axis features in both.

Tesamorelin FAQ

What is tesamorelin used for in research?

Growth hormone axis signalling and visceral adipose tissue research, plus comparative work against other GHRH analogs. Supplied for laboratory use only.

How is tesamorelin different from sermorelin?

Both are GHRH analogs. Tesamorelin is a full-length, stabilised version studied specifically in relation to visceral fat, while sermorelin is a shorter fragment studied more generally on the growth hormone axis.

Is tesamorelin a peptide?

Yes, it is a synthetic peptide analog of naturally occurring growth hormone releasing hormone.

What testing does Healio tesamorelin carry?

Independent third-party HPLC purity to a minimum of 98% and mass spectrometry identity confirmation, published per batch before purchase.