How Long Does Tesamorelin Last? Shelf Life & Stability
"Stable" is meaningless without saying stable against what. Tesamorelin has its own set of degradation routes, and they determine which storage precautions actually matter for it.
In plain English
Long molecules come apart at the boundary between liquid and air, so shaking and freezing are the two things to avoid. There are also more places along a forty-four-part chain where slow chemical changes can occur, simply because there is more molecule to go wrong.
What Tesamorelin actually is
Tesamorelin keeps the body's own growth hormone-releasing signal completely intact — all forty-four amino acids — and adds one small chemical cap to the end. That cap exists for a single reason: an enzyme would otherwise destroy the natural molecule within minutes, and the cap blocks it from reaching its cutting point.
Supplied for laboratory research use only — not for human or animal use.
Third-party tested by HPLC and LC-MS, ≥99% purity, with a Certificate of Analysis on every order. Ships across Canada.
Technical detail below
Degradation routes specific to Tesamorelin
- Aggregation at air–liquid interfaces from agitation — the practical failure mode for longer chains.
- Asparagine deamidation, of which a 44-residue sequence has multiple opportunities.
- Methionine oxidation at susceptible positions.
- Proteolysis in any biological matrix, though the N-terminal modification specifically blocks the DPP-4 route.
Freeze–thaw tolerance
Do not freeze reconstituted material. At this chain length, interfacial aggregation during freezing is a real risk.
How storage addresses these routes
Practical window once reconstituted: 2–3 weeks at 2–8 °C.
Full Tesamorelin storage conditionsWhat Tesamorelin is studied for
Full-length GHRH activity with DPP-4 resistance conferred by the N-terminal modification.
The most distinctive endpoint in its research literature.
Studied for effects on endogenous GH secretion patterns rather than direct GH substitution.
Investigated alongside body-composition endpoints in metabolic research.
Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.
More Tesamorelin reference
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.
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.
Stability reference for other compounds
Tesamorelin is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.