OP Labs Tesamorelin 5mg GHRH analogue research peptide lyophilized powder in glass vial
OP Labs research peptides
quality consistency 99% purity shipped from freezer 24 month shelf life
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OP Labs CJC-1295 no DAC Mod GRF 1-29 2mg research peptide lyophilized powder in glass vial CJC-1295 without DAC 2mg £13.90
OP Labs BPC-157 TB-500 Blend 10mg research peptide combination lyophilized powder in glass vial BPC157 + TB500 Blend 10mg £26.90
£19.53 with offer

Tesamorelin 5mg

£27.90

Tesamorelin is a synthetic growth hormone–releasing hormone (GHRH) analogue developed for experimental investigation of pituitary receptor–mediated signalling, growth hormone regulation, and downstream endocrine pathways.

  • OP Labs formerly Oxford Peptides
  • Batch tested Purity: ≥ 98 % (HPLC, typical)
  • CAS Number: 901758-09-6
  • Molecular Formula: C223H370N72O69S.
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(326 customer reviews)

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OP Labs Tesamorelin 5mg GHRH analogue research peptide lyophilized powder in glass vial
Tesamorelin 5mg
£27.90

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ALL ARTICLES AND PRODUCT INFORMATION PROVIDED ON THIS WEBSITE ARE FOR INFORMATIONAL AND EDUCATIONAL PURPOSES ONLY.

The products offered on this website are furnished for in-vitro studies only. In-vitro studies are performed outside of the body. These products are not medicines or drugs and have not been approved to prevent, treat or cure any medical condition, ailment or disease. Bodily introduction of any kind into humans or animals is strictly forbidden.

  • OP Labs formerly Oxford Peptides.
  • Batch HPLC tested at 99%+ purity.
  • Store frozen long term or in fridge when ready to be used.
  • Sold for research purposes only.
  • Contact us for Wholesale Orders.

Download COA here: Tesamorelin_COA.pdf
Please note if you have a different Batch ID please contact us for the latest COA.

Tesamorelin

Synonyms / Designations: Tesamorelin, TH9507, Growth Hormone–Releasing Hormone (GHRH) analogue
CAS Number: 901758-09-6
Molecular Formula: C223H370N72O69S
Molecular Weight: ~5135.91 g/mol
Peptide Length: 44 amino acids
Peptide Type: Synthetic GHRH analogue
Purity: ≥ 99 % (HPLC, typical)
Appearance: White to off-white lyophilised powder
Pack Size: 5 mg (typical)
Storage: Desiccated, protected from light, stored at –20 °C or below
Solubility: Soluble in water and buffered aqueous solutions

Description & Mechanism

Tesamorelin is a synthetic peptide analogue of human growth hormone–releasing hormone (GHRH 1–44) designed for experimental investigation of hypothalamic–pituitary signalling and growth hormone regulation. Structural modifications enhance stability relative to native GHRH, making Tesamorelin suitable for controlled laboratory research.

In biochemical and cellular research systems, Tesamorelin interacts with the GHRH receptor expressed on pituitary-derived cells, activating intracellular signalling cascades associated with growth hormone synthesis and secretion. Experimental studies examine receptor binding kinetics, cAMP-mediated signalling, and downstream transcriptional responses under defined exposure conditions. Observed effects are dependent on concentration, duration, and experimental model and are used to investigate GHRH receptor signalling rather than defined physiological outcomes.

Applications in Research

  • As a molecular probe for studying GHRH receptor activation and signalling pathways.
  • Investigation of growth hormone regulatory mechanisms in pituitary cell models.
  • In vitro studies examining peptide stability and receptor selectivity.
  • Use as a reference compound in neuroendocrine and peptide signalling research.

Specifications Summary

Purity: (HPLC): ≥ 99 %
Appearance: White to off-white lyophilised powder
Molecular Weight: ~5135.91 g/mol
Peptide Type: Synthetic GHRH analogue
Solubility: Water, buffered aqueous solutions
Storage: –20 °C, desiccated, protected from light
Pack Size: 5 mg

Handling, Reconstitution & Stability

  • Weigh under dry conditions; peptide is hygroscopic.
  • Reconstitute in sterile water or appropriate buffered aqueous solution.
  • Avoid vigorous agitation during dissolution.
  • Filter sterilize if required (e.g. 0.22 µm) prior to use.
  • Aliquot and store reconstituted solutions at –20 °C or lower.
  • Avoid repeated freeze–thaw cycles.

Precautions & Notes

  • Experimental behaviour of Tesamorelin is influenced by receptor expression, peptide concentration, and exposure duration.
  • Buffer composition, pH, and ionic strength may affect peptide stability.
  • Appropriate controls are recommended to distinguish receptor-specific from non-specific effects.
  • Intended strictly for laboratory research use; not for human or veterinary application.

References

Thorner M.O. et al. Growth hormone–releasing hormone and its analogues. Endocrine Reviews, 1997.
https://pubmed.ncbi.nlm.nih.gov/9107404/

Bowers C.Y. Growth hormone–releasing peptides and neuroendocrine regulation. Endocrine Reviews, 2001.
https://pubmed.ncbi.nlm.nih.gov/11159057/

Vance M.L. Growth hormone releasing hormone and pituitary signalling. Journal of Clinical Endocrinology & Metabolism, 2003.
https://pubmed.ncbi.nlm.nih.gov/12629096/

Keywords: Tesamorelin, TH9507, GHRH Analogue, Growth Hormone Regulation, Synthetic Peptide

326 reviews for Tesamorelin 5mg

  1. Richard Dolan –

    Early days but seems good quality

  2. Scott Westwood (verified owner) –

    Very good service,great price & delivered very quickly

  3. Ronald O. (verified owner) –

    Great product at the best price. Great for targeting visceral fat

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  5. Daniel (verified owner) –

  6. Peter Fullen –

    Absolutely spot on fantastic service can’t fault at all.

  7. Safaa O. –

    Good quality

  8. Bleu C. –

    Im 5 Days in currently and have noticed a difference in sleep waking up more refreshed more general energy.

  9. Anonymous –

  10. Sara garatly –

  11. Marc –

  12. Anonymous –

    Came quickly very impressed

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    Better sleep only a few days in, love it

  15. Bruce D. –

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    Ordered, and it arrived very quickly. Would definitely recommend!

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    Great service arrived next day great product

  18. Kenneth Dilliway –

  19. Anonymous –

    I’m extremely pleased with the quality, and my progress has been gradual yet impressive. I’m currently stacking it with CJC-1295 No Dac.

  20. Alan Mack –

  21. Stephen Neatby –

  22. alex Bradley –

    Delivered quickly and good communication will definitely using again

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    Quite positive results so far.

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  42. Anonymous –

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  45. Anonymous –

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