How Long Does Kisspeptin Last? Shelf Life & Stability
"Stable" is meaningless without saying stable against what. Kisspeptin has its own set of degradation routes, and they determine which storage precautions actually matter for it.
Overview
Its one weak point is a tryptophan that reacts with light — keep solutions dark and use within a couple of weeks.
What Kisspeptin actually is
A ten-part peptide that sits at the very top of the body's fertility and sex-hormone signalling, telling the brain to start the hormone cascade. Studied around fertility, libido, and how that cascade is regulated.
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 Kisspeptin
- Tryptophan oxidation, accelerated by light — the characteristic route for this sequence.
- Deamidation at asparagine over long storage.
- Microbial growth in non-preserved diluent.
The tryptophan is the vulnerability that sets it apart from oxidation-insensitive short peptides — light discipline matters here.
Freeze–thaw tolerance
Aliquot on first reconstitution; avoid repeated cycles.
How storage addresses these routes
Practical window once reconstituted: 2-3 weeks at 2-8 °C, shorter if exposed to light. Contains tryptophan — keep reconstituted solution out of direct light.
Full Kisspeptin storage conditionsWhat Kisspeptin is studied for
Studied as the upstream trigger of GnRH release and the downstream LH and FSH signalling cascade.
Examined as the endogenous ligand for the KISS1 receptor in reproductive neuroendocrine models.
The parent KISS1 product was first characterised in cancer-metastasis research, a separate strand of the literature.
Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.
More Kisspeptin 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
Kisspeptin 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.