Tesamorelin Description
Tesamorelin is a synthetic peptide analogue of GHRH with a trans-3-hexenoic acid moiety anchored at the N-terminus of its 44-amino acid sequence, providing enhanced stability compared to endogenous GHRH. The compound stimulates pituitary secretion of growth hormone and subsequently increases insulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3) levels in biological systems.
Tesamorelin Peptide Structure
Sequence: YADAIFTNSYRKVLGQLSARKLLQDIMSRQQGESNQERGARARL
Molecular Formula: C223H370N72O69S
Molecular Weight: 5196 g/mol
PubChem CID: 44147413
CAS Number: 901758-09-6
Synonyms:
Tesamorelin acetate
901758-09-6
TH9507
UNII-LGW5H38VE3
Tesamorelin acetate [USAN]
Research Areas:
Visceral Adipose Tissue Reduction
Non-Alcoholic Fatty Liver Disease (NAFLD)
Fat Quality
Cardiovascular and Metabolic Health
Neurocognitive Impairment
CID 44147413.png
Source: PubChem
Lyophilized Peptides:
These peptides are freeze-dried, a process that not only extends shelf life but also preserves the purity and integrity of the peptides during storage. We do not use any fillers in this process.
References
Falutz, J., Mamputu, J., Potvin, D., Moyle, G., Soulban, G., Loughrey, H., Marsolais, C., Turner, R., & Grinspoon, S. (2010). Effects of tesamorelin (TH9507), a growth hormone-releasing factor analog, in human immunodeficiency virus-infected patients with excess abdominal fat: a pooled analysis of two multicenter, double-blind placebo-controlled phase 3 trials with safety extension data.. The Journal of clinical endocrinology and metabolism, 95 9, 4291-304 . https://doi.org/10.1210/jc.2010-0490.
Fourman, L., Billingsley, J., Agyapong, G., Sui, S., Feldpausch, M., Purdy, J., Zheng, I., Pan, C., Corey, K., Torriani, M., Kleiner, D., Hadigan, C., Stanley, T., Chung, R., & Grinspoon, S. (2020). Effects of tesamorelin on hepatic transcriptomic signatures in HIV-associated NAFLD. JCI Insight, 5. https://doi.org/10.1172/jci.insight.140134.
Lake, J., La, K., Erlandson, K., Adrian, S., Yenokyan, G., Scherzinger, A., Dubé, M., Stanley, T., Grinspoon, S., Falutz, J., Mamputu, J., Marsolais, C., McComsey, G., & Brown, T. (2021). Tesamorelin improves fat quality independent of changes in fat quantity. AIDS, 35, 1395 – 1402. https://doi.org/10.1097/QAD.0000000000002897.
Grinspoon, S., Fourman, L., Stanley, T., McGary, C., Benkeser, D., & Cash, R. (2025). P-433. Impact of Tesamorelin on Cardiovascular Disease Risk Prediction Scores in Phase 3 Studies Treatment Arms: Subanalysis. Open Forum Infectious Diseases, 12. https://doi.org/10.1093/ofid/ofae631.633.
Ellis, R., Vaida, F., Hu, K., Dube, M., Henry, B., Chow, F., Heaton, R., Lee, D., & Sattler, F. (2025). Effects of Tesamorelin on Neurocognitive Impairment in Abdominally Obese Persons with HIV.. The Journal of infectious diseases. https://doi.org/10.1093/infdis/jiaf012.
Scientific Reviewer
Scientifically reviewed by Dr. Ky H. Le, MD. Dr. Le is a board-certified family medicine physician with over 20 years of clinical experience. Dr. Le validates the scientific accuracy of all technical content and research citations.