Tesamorelin is a stabilized GHRH analog (a growth-hormone-releasing hormone analog) studied most notably for its effect on visceral adipose tissue, alongside its modulation of the GH/IGF-1 axis.
How it’s studied
Like other GHRH analogs, Tesamorelin acts on the GHRH receptor to stimulate the pituitary’s release of the body’s own growth hormone, which in turn raises IGF-1. What distinguishes it in the research literature is a specific, well-documented association with reduction of visceral adipose tissue, which is why it appears frequently in metabolic and body-composition studies rather than general GH-axis work.
Research context
Among GHRH analogs, Tesamorelin has one of the more developed clinical research records, which makes it a common reference compound. It relates mechanistically to the GHRH analog CJC-1295 — both act on the GHRH receptor — differing in structure and duration. This research-grade material is supplied for in-vitro and laboratory study only. For background on the GHRH-analog class, see our [CJC-1295 Research Overview »].
Regulatory note (2026)
Tesamorelin is an approved pharmaceutical for a specific medical indication; that is why it functions here as a reference standard rather than a novel research peptide. Research-grade material is a separate, research-use-only context and is not an approved medicine. GHRH analogs are also prohibited in sport under the WADA Prohibited List (Section S2). VANTA’s material remains strictly research-use-only.
Related research compounds
Tesamorelin sits at the intersection of the GH and weight-management clusters. Compare it with the GHRH analog [CJC-1295 (Without DAC) »] and the [CJC-1295 (No DAC) + Ipamorelin »] blend, or with metabolic compounds like [Tirzepatide »]. Browse all [Weight Management Research »] compounds.
Purity & testing
– ≥99% purity (this lot: 99.61% by HPLC)
– Lyophilized powder for laboratory reconstitution
– Batch-specific Certificate of Analysis — HPLC + mass spec, heavy metals, sterility, endotoxin
– ISO/IEC 17025-accredited third-party testing → [View the COA »]
Laboratory handling
Store lyophilized material cold and protected from light (long-term at −20 °C). After reconstitution, refrigerate at 2–8 °C and use within your protocol window. Confirm identity and purity against the batch COA before use.
Research FAQ
What is a GHRH analog? A synthetic molecule that mimics growth-hormone-releasing hormone, acting on the GHRH receptor to stimulate the pituitary’s own GH release — rather than supplying GH directly.
How does Tesamorelin differ from CJC-1295? Both are GHRH analogs acting on the same receptor; they differ in structure and duration, and Tesamorelin is most associated in the literature with visceral-fat research.
For laboratory and research use only. Not for human or veterinary consumption, and not for diagnostic or therapeutic use. Tesamorelin is an approved pharmaceutical; this material is a research-grade reference standard. These statements have not been evaluated by the FDA.
