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Tesamorelin peptide UK 10mg and 20mg vial

Research Peptides

Tesamorelin Research Peptide

A high-purity research peptide studied in growth-hormone and fat-metabolism research. Available in 10mg and 20mg, with every batch independently tested and dispatched from the UK.

£69.99or from £59.49 per vial in packs of 5
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Product Overview

A high-purity research peptide studied in growth-hormone and fat-metabolism research. Available in 10mg and 20mg, with every batch independently tested and dispatched from the UK.

Full Product Specification
Overview

Product Overview

Tesamorelin peptide UK is Crown Peptides' synthetic GHRH receptor analogue, supplied in 10 mg and 20 mg vials for laboratory research. The Tesamorelin 20 mg vial carries twice the material of the 10 mg at a lower cost per milligram, which is why it is the usual choice for longer protocols or work that needs a consistent single lot across a study.

10mg & 20mgAvailable strengthsHPLC testedChromatographic purityMS verifiedIdentity confirmedBatch CoADocumentation supplied

Supplied for laboratory research purposes only — not for human consumption or for medical, veterinary or diagnostic use.

Key features

Key Features

  • Studied in research involving GHRH receptor signalling
  • Studied in research involving pituitary growth-hormone release
  • Studied in research involving endocrine feedback
  • Studied in research involving metabolic research models
  • Batch-specific quality documentation available
Background

About Tesamorelin Peptide UK

Tesamorelin peptide is a synthetic analogue of growth-hormone-releasing hormone designed to activate the GHRH receptor. Its sequence is closely related to endogenous GHRH but includes a modification that improves stability against enzymatic degradation.

Research

Tesamorelin Research

The published literature on Tesamorelin is unusually deep for a research peptide. A meta-analysis of five randomised controlled trials, published in Obesity Research & Clinical Practice in January, reported a significant reduction in visceral adipose tissue (mean difference −27.71 cm²), a reduction in trunk fat of 1.18 kg, and an increase in lean body mass of 1.42 kg, alongside raised IGF-1 — with no significant change in subcutaneous fat or BMI. A separate systematic review pooling four trials across 909 participants reached broadly the same conclusions.

Liver-focused work has drawn particular attention. A randomised placebo-controlled trial in HIV-associated NAFLD found that Tesamorelin reduced liver fat and prevented fibrosis progression over twelve months, and a follow-up analysis of paired liver biopsies from the same trial mapped the inflammatory and fibrotic gene-expression pathways that shifted alongside it. Cognitive endpoints have been examined too, in a Phase II trial in ageing HIV-positive adults (NCT02572323), where the between-group difference did not reach significance — a reminder that the GH–IGF-1 axis does not behave uniformly across every outcome studied.

Tesamorelin is studied in GHRH receptor pharmacology, pituitary growth-hormone release, downstream IGF-1 signalling [IGF-1 LR3] and metabolic-endocrine models. Its enhanced stability compared with native GHRH makes it useful for studying sustained receptor activation (Learn more) and the consequences of altered hypothalamic-pituitary signalling.

  • GHRH receptor signalling
  • Pituitary growth-hormone release
  • Endocrine feedback
  • Metabolic research models
Specifications

Specifications

Product
Tesamorelin
Classification
Synthetic growth-hormone-releasing hormone analogue
Available strengths
10mg and 20mg
CAS number
218949-48-5
Molecular weight
5135.86 g/mol
Molecular formula
C221H366N72O67S
Sequence
trans3hexenoylTyrAlaAspAlaIlePheThrAsnSerTyrArgLysValLeuGlyGlnLeuSerAlaArgLysLeuLeuGlnAspIleMetSerArgGlnGlnGlyGluSerAsnGlnGluArgGlyAlaArgAlaArgLeu-NH2
Form
Research material supplied according to product label
Purity and assay
99% (HPLC), batch-specific — refer to Certificate of Analysis
Verification
HPLC and Mass Spectrometry where analytically appropriate

Compound-level reference data. Batch-specific results appear on the Certificate of Analysis.

Work out concentration with the peptide calculator
Testing

Purity and Testing

Crown Peptides Tesamorelin is supplied for controlled laboratory research with batch-specific analytical documentation. High-Performance Liquid Chromatography (HPLC) can assess chromatographic purity, while Mass Spectrometry provides molecular information used to support identity verification.

The batch-specific Certificate of Analysis is the definitive source for the exact purity result, identity data and analytical specification of the material supplied.

Storage

Storage Conditions

  • Store unreconstituted material at -20°C ± 5°C in a cool, dry environment
  • Prepared research solutions should use validated storage conditions appropriate to the compound and study design
  • Protect from unnecessary heat, direct light and repeated temperature fluctuations
Full storage guide
Related

Related Compounds

Researchers working with Tesamorelin may also be interested in [Sermorelin], [CJC-1295 (with DAC)], [CJC-1295 + Ipamorelin], [Ipamorelin] and [MOTS-C] — other compounds studied in growth-hormone axis and metabolic research.

Compliance

Research Use Only

  • Laboratory research only
  • Not for human or clinical use
  • Not for human or veterinary consumption
  • Qualified personnel only
Questions

Tesamorelin Frequently Asked Questions

What is Tesamorelin?

Tesamorelin peptide UK from Crown Peptides is a synthetic analogue of growth-hormone-releasing hormone studied through the GHRH receptor.

What is Tesamorelin researched for?

Research includes GHRH receptor pharmacology, pituitary growth-hormone release, IGF-1-related signalling and metabolic-endocrine models.

How does Tesamorelin differ from native GHRH?

It contains a structural modification designed to improve resistance to enzymatic degradation.

Is Tesamorelin a growth-hormone secretagogue?

It promotes growth-hormone signalling through the GHRH receptor, which is mechanistically different from ghrelin-receptor secretagogues such as GHRP peptides [GHRP-6].

What is the difference between Tesamorelin 10 mg and 20 mg?

Only the quantity of material in the vial. Both are the same compound, the same synthetic GHRH analogue, prepared and tested to the same standard, and both arrive as a lyophilised powder with a batch-specific certificate. The 20 mg vial simply contains twice as much, so it works out cheaper per milligram than buying two 10 mg vials and keeps a longer run of work on a single lot number.

Which Tesamorelin vial size should a study use?

That depends on how much material the protocol needs and how long it runs. Shorter or exploratory work is often better served by the 10 mg vial, since reconstituted peptide has a limited working life and there is little sense in preparing more than a study will use. Longer protocols, or any design where lot-to-lot variation would be a confounder, tend to favour the 20 mg vial — one certificate, one batch number, one set of analytical values across the whole study.

How is Tesamorelin tested?

HPLC and Mass Spectrometry can assess peptide purity and molecular identity, with the exact supplied form confirmed on the batch-specific CoA.

Read the batch certificate before you order

Every batch is published openly — identity, purity and batch number, with no account needed.

View lab reports

Supplied for laboratory research purposes only — not for human consumption or for medical, veterinary or diagnostic use.

All Batches Purity Tested

Each batch undergoes internal analytical verification using chromatographic and spectrometric methods prior to lyophilisation.

• HPLC Analysis
• Mass Spectrometry Confirmation
• Batch Traceability

For Research Use Only

By purchasing this product you confirm that you are a qualified researcher and that this compound will be used exclusively for laboratory research purposes.

Not for Human Consumption

This product is not intended for diagnostic or therapeutic use.

Any human or medical use is strictly prohibited.

Store Safely at All Times

Store in a cool, dry, secure and sterile environment away from any unauthorised persons or children.

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UK research peptides. Every batch HPLC and MS verified, certificate published in full.

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Disclaimer: All products are sold strictly for laboratory research purposes only. Not for human or veterinary use, consumption, therapeutic, or diagnostic application. By purchasing, you confirm you are a qualified professional and legally permitted to handle these materials in compliance with all applicable laws and regulations. Misuse, resale for unauthorised purposes, or unlawful application is strictly prohibited. Crown Peptides UK disclaims all liability for improper use, handling, or regulatory non-compliance.

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