Tesamorelin
A stabilized GHRH(1-44) analog studied for growth-hormone-axis and lipid metabolism.
01At a Glance
| Compound | Tesamorelin (TH9507) |
| Classification | Endocrine research compound |
| Molecular weight | 5,135.9 g/mol |
| Sequence / Form | Stabilized GHRH(1-44) |
| Purity | ≥99% HPLC, identity verified by mass spectrometry |
| Documentation | Batch-specific Certificate of Analysis available |
| Appearance | White lyophilized powder |
| Storage | Store sealed at 2–8°C. Long-term storage per certificate guidance. |
| Use | Research Use Only. Not for human or veterinary use. |
02Mechanism of Action
Tesamorelin is a stabilized analog of the full-length growth-hormone-releasing hormone GHRH(1-44). As a GHRH-receptor agonist it is studied for stimulation of endogenous growth-hormone secretion and downstream IGF-1 signaling.
Research models also examine its relationship to visceral-lipid and metabolic endpoints associated with the GH–IGF-1 axis.
Research framing only · No human-use claims
03Research Context
- GHRH-receptor agonism and GH-secretion assays
- GH–IGF-1 axis endocrine research
- Visceral-lipid and metabolic-endpoint models
- Stabilized-peptide pharmacology studies
04Quality & Verification
Ethos Bio presents compound information with an emphasis on identity verification, purity analysis, certificate access, and storage guidance. Product-specific documentation is available through the certificate page where applicable. Cold-chain shipping is available where required, and inventory is held under refrigerated conditions at our fulfillment center with temperature-logging protocols in place.
05FAQ
What is Tesamorelin?
Tesamorelin is a stabilized GHRH(1-44) analog studied for growth-hormone-axis stimulation and IGF-1 signaling in research models. It is a research-use-only compound.
How is Tesamorelin different from Sermorelin?
Tesamorelin is based on the longer GHRH(1-44) sequence with stabilizing modifications, while Sermorelin is the GHRH(1-29) fragment; both are GHRH-receptor agonists used as research tools.
What is Tesamorelin's molecular weight?
Tesamorelin has an approximate molecular weight of 5,135.9 g/mol and CAS number 218949-48-5.
How should Tesamorelin be stored?
Tesamorelin ships lyophilized and should be handled per standard research-peptide practice — kept cold, protected from light and moisture, and reconstituted only for laboratory use. Cold-chain handling is used where required. For research use only.
Is Tesamorelin approved for human use?
No. Tesamorelin is sold strictly for laboratory research use only and is not a drug or supplement. It is not approved for human or veterinary use or consumption.
How is Tesamorelin tested at Ethos Bio?
Every Tesamorelin lot is independently verified by MZ Biolabs, a third-party analytical laboratory in Arizona, on a five-point panel — RP-HPLC purity, HPLC-MS identity, endotoxin (LAL), heavy metals, and sterility. A lot-specific certificate of analysis ships with the vial. See How We Test for the full methodology.