Kisspeptin-10 (KP-10) is the minimum bioactive fragment of kisspeptin, encoded by KISS1. Administration stimulates hypothalamic GnRH release and downstream LH / FSH secretion.
Kisspeptin-10 is the shortest fully active fragment of kisspeptin, the neuropeptide encoded by the KISS1 gene that sits at the top of the reproductive hormone cascade. It signals through the KISS1R (GPR54) receptor on hypothalamic GnRH neurons.
By stimulating GnRH release, kisspeptin drives downstream secretion of LH and FSH — making it a research tool for probing and potentially restoring reproductive-axis function. It is investigational and not FDA-approved.
KISS1R (GPR54) agonism on hypothalamic GnRH neurons.
Behind every vial of Kisspeptin-10 is the same exacting pipeline every research peptide runs — but the chemistry plays out differently for this molecule. Here is how Kisspeptin-10, specifically, is brought into being.
On paper, Kisspeptin-10 is C63H83N17O14 — about 1,302.4 daltons of precisely arranged atoms. Before a single bond is made, the target sequence, salt form, and purity threshold are written down as the contract the finished material must meet.
Assembling Kisspeptin-10 means roughly 10 coupling cycles on the synthesizer — one protected residue added at a time, which is also 10 chances for an incomplete coupling to seed a deletion impurity. It is a short sequence, which makes the build comparatively tractable — but short does not mean trivial, and purity is still won or lost downstream. Its C-terminus is amidated rather than left as a free acid — a defined modification the synthesis has to deliver, not an afterthought.
The crude mixture — Kisspeptin-10 plus its deletions and side products — is then separated on preparative HPLC, and where the cut is taken decides the difference between a genuinely pure peptide and a barely-passable one. It also contains oxidation-prone methionine or tryptophan residues, another family of impurities the chromatography has to resolve away.
A real batch of Kisspeptin-10 proves itself: identity confirmed by mass spectrometry against its ~1,302.4 Da, purity read directly off an analytical HPLC trace, water and counterion content measured. That batch-specific certificate of analysis is the only honest way to know what is actually in a vial of Kisspeptin-10 — and a short, cold, accountable chain of custody is how that purity survives the trip to your bench.
Producing Kisspeptin-10 to a genuine purity spec means solid-phase synthesis, preparative HPLC purification, and batch quality control — none of it cheap, and none of it something you can verify by eye.
Don't judge a vial by its cake. A fluffy, good-looking lyophilized powder reflects bulking agents and freeze-drying parameters — not purity. Insist on a batch-specific certificate of analysis.
Recent clinical trials and publications mentioning Kisspeptin-10, pulled automatically from ClinicalTrials.gov and PubMed and refreshed daily. Listings are unfiltered search results, not curated endorsements.
Kisspeptin-10 is the active fragment of kisspeptin, a neuropeptide that triggers GnRH release at the top of the reproductive hormone axis.
Kisspeptin is the upstream regulator of the hypothalamic-pituitary-gonadal axis, stimulating GnRH and downstream LH and FSH.
Reproductive endocrinology, hypothalamic amenorrhea, puberty, and fertility research.
No — it is investigational. This page is a research and educational reference.
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ViewDosing protocols, mechanism, comparisons, and the latest trials — citation-backed answers grounded in PubMed, PubChem, and ClinicalTrials.gov.