Tesamorelin
Synthetic GHRH analogue, lyophilised. For in vitro research use only.
Key facts
- Compound:
- Tesamorelin
- Purity:
- ≥99%, verified by HPLC
- Identity confirmed by:
- LC-MS, independent third-party lab
- Molecular weight:
- 5135.0 g/mol
- Certificate of analysis:
- available on request, verifiable by lot number
- Ships from:
- Vancouver, BC — typically 2–5 business days, tracked and insured, no customs
- Intended use:
- in vitro laboratory research only — not for human or veterinary consumption
Page last updated
Tesamorelin is a synthetic analogue of growth-hormone-releasing hormone (GHRH).
Tesamorelin for endocrine research, shipped Canada-wide from Vancouver. One 10 mg vial, ≥99% purity, molecular weight 5135.0 g/mol. Identity and purity are confirmed by independent HPLC and LC-MS, with the batch-specific Certificate of Analysis available on request. Every lot number is verifiable at popularpeptides.ca/verify. Tracked, insured delivery across Canada — typically 2 to 5 business days, with no customs step and no brokerage fee.
Supplied lyophilised for in vitro laboratory research use only; not intended for human or veterinary use.
⚠️ Research Use Only. This compound is intended for in vitro research and laboratory use only. Not for human or veterinary consumption.
Tesamorelin — compound background
Full-length 44-residue GHRH analogue with trans-3-hexenoic acid modification
Tesamorelin is the complete 44-amino-acid sequence of human growth hormone-releasing hormone with a trans-3-hexenoic acid group attached at the N-terminus. That modification exists for one reason: native GHRH is cleaved almost immediately by dipeptidyl peptidase-4 at the N-terminal end, and the hexenoyl group blocks that cleavage.
Solubility & reconstitution
At 44 residues this is one of the longest chains in the catalogue and behaves accordingly — dissolution is slower than for short peptides and the material benefits from patience rather than agitation. The N-terminal acyl group adds modest hydrophobicity, so gentle swirling over several minutes is the correct approach.
Storage
Sealed at -20 °C. Longer chains generally have less thermal margin than short peptides; minimise ambient exposure. Refrigerate at 2–8 °C. Longer peptides have more potential degradation sites simply by virtue of length.
Commonly worked with for 2–3 weeks at 2–8 °C.
Stability
Do not freeze reconstituted material. At this chain length, interfacial aggregation during freezing is a real risk.
Reading the Certificate of Analysis
Confirm the mass near 5135 Da, and specifically confirm the N-terminal modification is present — a des-hexenoyl species would be 96 Da lighter and represents material lacking the entire stability rationale of the molecule. For a synthesis this long, review the chromatogram for closely eluting deletion sequences.
Background and handling information is educational, for in-vitro laboratory research use only — not medical advice, dosing, or usage guidance, and not a description of use in humans or animals.
How much does Tesamorelin cost in Canada?+
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Tesamorelin laboratory reference
Tesamorelin is full-length 44-residue ghrh analogue with trans-3-hexenoic acid modification. Handling requirements follow from that chemistry rather than from generic peptide guidance — the pages below cover each aspect specifically for this compound.
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
Which solvents work, why, and what abnormal dissolution behaviour indicates.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Which assays are informative for this molecule, and what to actually check on its COA.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Tesamorelin compared with
Reference content is educational laboratory-handling information for in-vitro research use only — not medical advice, not usage guidance, and not a protocol.