Tesamorelin
Tesamorelin

Price range: £49.99 through £79.99

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Tesamorelin

Price range: £49.99 through £79.99

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Tesamorelin is a synthetic 44-amino-acid growth-hormone-releasing-factor analogue supplied lyophilised for GHRH-receptor and pituitary-signalling research.

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For in vitro laboratory research only.
Not for human or veterinary use. Not for diagnosis, treatment, cure, or prevention of any disease. No dosage, administration, or injection guidance is provided.

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Tesamorelin is a synthetic 44-amino-acid growth-hormone-releasing-factor analogue supplied as a lyophilised research material. It is studied in controlled laboratory models involving the growth-hormone-releasing-hormone receptor, pituitary signalling and modified peptide stability.

Research material only
This material is not supplied as a medicine, treatment, supplement or consumer product. It is not for human or veterinary use, consumption or administration, and is not intended to diagnose, treat, cure or prevent any disease.

Compound overview

Compound classSynthetic GHRH analogue
Peptide length44 amino acids
Reference formulaC₂₂₁H₃₆₆N₇₂O₆₇S
Reference molecular mass5135.9 Da (free base)
CAS reference218949-48-5
Research pathwayGHRH-receptor signalling

Research context

Tesamorelin is based on the 44-amino-acid sequence of human growth-hormone-releasing factor and incorporates an N-terminal trans-3-hexenoyl modification. Published receptor research describes interaction with the human growth-hormone-releasing-factor receptor, a G-protein-coupled receptor involved in pituitary signalling.

Clinical literature has examined defined pharmaceutical tesamorelin preparations in specific patient populations, including studies of body composition, metabolic markers and liver-fat endpoints. Those findings concern regulated preparations and controlled protocols; they do not establish the identity, purity, performance or suitability of the research material supplied on this page.

Batch documentation

Independent analytical documentation is published where available for specific batches and variations. A result indicator appears only when a published record is available. Match the compound, vial size and batch identifier to the corresponding report before relying on any result.

Supply and laboratory handling

  • Supplied in the vial size selected above.
  • Provided as a lyophilised research material.
  • Keep the vial sealed and protected from moisture, heat and direct light.
  • Use suitable laboratory controls and independently verify identity and concentration for the intended experimental model.

Frequently asked questions

What is Tesamorelin?

Tesamorelin is a synthetic analogue of the 44-amino-acid human growth-hormone-releasing factor sequence, modified with an N-terminal trans-3-hexenoyl group.

Which receptor is associated with Tesamorelin research?

Published research primarily associates Tesamorelin with the growth-hormone-releasing-hormone receptor, also described as the growth-hormone-releasing-factor receptor.

Is Tesamorelin the same as unmodified human GHRH?

No. It is based on the human GRF(1–44) sequence but includes an N-terminal lipid modification. The modified and unmodified materials should not be treated as interchangeable.

Which vial sizes are available?

Current selectable vial sizes and availability are shown above. These controls update automatically as variations change.

Are laboratory results available?

A shield appears beside a variation only when a published result is available. No indicator means that no product-specific result is currently displayed for that variation.

How should the material be stored?

See the Storage Guidelines tab for the current handling guidance for sealed lyophilised material and reconstituted solution.

Information reviewed 29 August 2026.

Size

10mg, 20mg

Batch-specific analytical documentation

Independent analytical results are published for selected Havoc Labs products, vial sizes and batches. The result attached to one variation must not be treated as evidence for a different size or batch.

  • Result available: a published report is available for the marked variation.
  • Test pending: a sample has been submitted, but no completed result is being claimed.
  • No indicator: no product-specific result is currently displayed for that variation.

Check the identifiers

Always match the compound, vial size and batch reference on the product to the corresponding laboratory record. Where the laboratory provides an independent verification facility, use it to confirm the report.

Browse published lab results →

Storage and stability

Storage requirements can vary by compound, physical form, intended storage duration and batch. Follow the lot-specific documentation and your laboratory’s validated procedure wherever these are available.

Form Suggested storage Important note
Sealed lyophilised material Keep in a cool, dry place, refrigerated at 2–8°C or frozen, as appropriate for the compound and intended storage period. Keep sealed, dry and protected from direct light. Follow compound- and batch-specific documentation and avoid repeated temperature cycling.
Reconstituted solution Refrigerate at 2–8°C unless the applicable laboratory protocol specifies otherwise. Stability depends on the preparation conditions, solvent, concentration, container and handling. No universal storage period is claimed.

No universal shelf-life is claimed

Do not assume a fixed expiry or prepared-solution storage period unless it is supported by relevant stability data or batch documentation. Where a lot-specific document gives different instructions, that document takes precedence.

Published research

The sources below concern Tesamorelin under the defined preparations, populations and experimental conditions used by their authors. They provide compound-level scientific context and do not establish the identity, purity, performance or suitability of any supplied batch.

  1. PubChem. Tesamorelin — Compound Summary, CID 16137828. Reference sequence, structure, formula, identifiers and computed molecular mass. View on PubChem ↗
  2. US Food and Drug Administration. EGRIFTA WR prescribing information. Authoritative pharmaceutical reference describing the 44-amino-acid GRF-derived sequence, N-terminal hexenoyl modification, acetate form and receptor pharmacology. View FDA label ↗
  3. Falutz J et al. Metabolic effects of a growth hormone-releasing factor in patients with HIV. New England Journal of Medicine, 2007. Randomised controlled research with a defined pharmaceutical preparation in a specific patient population. View on PubMed ↗
  4. Stanley TL et al. Metabolic effects of a growth hormone-releasing factor in obese subjects with reduced growth hormone secretion: a randomized controlled trial. Journal of Clinical Endocrinology & Metabolism, 2012. Controlled human research examining body-composition and metabolic endpoints. View on PubMed ↗
  5. Stanley TL et al. Effects of Tesamorelin on non-alcoholic fatty liver disease in HIV: a randomised, double-blind, multicentre trial. The Lancet HIV, 2019. Controlled clinical research examining liver-fat and histological endpoints in a defined population. View on PubMed ↗

Published clinical research is not evidence for this product

Human studies cited above used regulated or investigational pharmaceutical preparations under controlled protocols. They do not establish that this research material is equivalent, safe or suitable for human use and do not establish the identity, purity or performance of the batch supplied on this page. Confirm the stated structure and batch identifier against applicable analytical documentation.