- 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 – Technical Information
Peptide Name:
Tesamorelin
Synonyms:
ThGRF(1–44)NH2, Egrifta (commercial name), Growth Hormone Releasing Factor (1–44) analogue
Peptide Sequence (Amino Acid):
H–Tyr–Ala–Asp–Ala–Ile–Phe–Thr–Asn–Ser–Tyr–Arg–Lys–Val–Leu–Asp–Ile–Met–Ser–Arg–Gln–Gln–Gly–Glu–Ser–Asn–Gln–Glu–Arg–Gly–Ala–Arg–Ala–Arg–Leu–NH–Gly–Gln–Ser–Leu–Arg–Ala–Arg–Lys–Leu–Leu–Gln–NH2
Length:
44 amino acids
Molecular Formula:
C221H366N72O67S
Molecular Weight:
5135.91 g/mol
CAS Number:
218949-48-5
PubChem CID:
16133869
IUPAC Name:
Due to Tesamorelin’s length and complexity (44 amino acids), a full IUPAC name is not commonly used. It is generally referred to by sequence and systematic designation.
Structure Representation:
SMILES:
Not commonly used due to size and complexity; represented primarily by sequence.
Peptide Classification:
Synthetic growth hormone-releasing hormone (GHRH) analogue; stabilized with a trans-3-hexenoic acid group
Solubility:
Soluble in water, dilute acetic acid, and phosphate-buffered saline (PBS)
Storage Guidelines:
– Store lyophilized peptide at −20°C
– Reconstituted solutions should be kept at 2–8°C and used within several days
– Protect from light; avoid repeated freeze-thaw cycles
References
- Teichman, S. L., Neale, A., Lawrence, D., et al. (2006). “Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone.” Journal of Clinical Endocrinology & Metabolism, 91(3), 799–805. https://doi.org/10.1210/jc.2005-1536
- Gelato, M. C., & McCall, T. (2008). “Evaluation of tesamorelin, a stabilized analogue of GHRH, in healthy subjects: endocrine and pharmacokinetic effects.” Clinical Pharmacokinetics, 47(9), 623–632. https://doi.org/10.2165/00003088-200847090-00001
- Fahy, J. V., et al. (2008). “Pharmacodynamics and safety profile of tesamorelin.” American Journal of Physiology – Endocrinology and Metabolism, 295(2), E402–E410. https://doi.org/10.1152/ajpendo.90212.2008
- Broglio, F., Arvat, E., & Ghigo, E. (2002). “Growth hormone-releasing hormone analogs and secretagogues: Clinical pharmacology and potential applications.” Drugs, 62(9), 1371–1395. https://doi.org/10.2165/00003495-200262090-00005
Keywords: Tesamorelin.










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Overhyped and underdelivers.
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Top-notch quality.
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DoesnÕt live up to the hype.
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Delivery was much slower than expected.
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Frustrated with how slow the shipping was.
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Definitely wouldnÕt recommend.
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DoesnÕt work as advertised.
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DidnÕt last as long as it should.
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Very slow shipping, not happy at all.
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Great value for money
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Great service
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Speedy service very happy
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Parmvir –
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Brilliant product doing what its says it can.
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Anonymous –
Anonymous –
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Great product, quick delivery
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Anonymous –
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Next day delivery, perfect
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Quick discrete postage. Good value. I have another order placed and will continue to use this company for all my peptides😁
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Great service great price
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David Moir –
This makes me sweat a bit but too early to tell if its taken affect as ita only been one week but do feel like its starting to do its stuff.
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Great service
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So far so good
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Great product
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Excellent
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Always excellent service
david john THOMAS –
George Bowe –
Chee Seong Foo –
Just wished it was cheaper. And the 20% discount not just for purchases above 100 pounds.
Stephen Neatby –
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Low prices and quick delivery
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I was really impressed how this reduces belly fat so quickly. Definitely reordering!
James –
All received thank you
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Been on it a week and had the best night’s sleep I’ve had in years
Anonymous –
Quality
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Dale Donovan –
Matthew Dockrill –
Average price and fast delivery
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Not used yet
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Excellent product ,very satisfied
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Anonymous –
Great communication, product arrived promptly, good quality.
George C. –
OP was recommended to me by a friend. After an issue with shipping (RM) I contacted OP customer services and Bella was great. She was straight on the case and got the issue resolved. Definitely continue to source my peptides from OP.
MARK PATTERSON –
paul b. –
Thus is next level. This is a fat burner at its best
Carl –
Anonymous –
yuliia c. –
Steve Walters –
Very good
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Vey good and quickly delivery
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Love the price really good company
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Anonymous –
Quite positive results so far.
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alex Bradley –
Delivered quickly and good communication will definitely using again
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Fantastic product
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Great service, received quickly with clear communication throughout
Karl Jaundrill –
Stephen Neatby –
Alan Mack –
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.
Kenneth Dilliway –
Les –
Great service arrived next day great product
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Ordered, and it arrived very quickly. Would definitely recommend!
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Ciaran D. –
Better sleep only a few days in, love it
Richard Dolan –
Early days but seems good quality
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Anonymous –
Came quickly very impressed
Marc –
Sara garatly –
Anonymous –