Kisspeptin-10, KISS1, metastin · Evidence-based safety and harm-reduction overview.
| Also known as | Kisspeptin-10, KISS1, metastin |
| Category | Peptide |
| discovery | Identified 2003; named from Kiss, a small town in Indiana |
| mechanism_class | Neuropeptide; GPR54 receptor agonist |
| route | Investigational; intravenous used in research |
| natural_role | Essential upstream gatekeeper of the HPG axis and puberty |
| US legal status | Kisspeptin is not an FDA-approved drug and is strictly investigational. It is used in authorized clinical research and is otherwise sold as a research-only chemical that is not legal to market for human consumption. |
Kisspeptin is a neuropeptide encoded by the KISS1 gene that acts as a key upstream regulator of the hypothalamic-pituitary-gonadal (HPG) axis, directly stimulating GnRH (gonadotropin-releasing hormone) release. It is studied for its essential role in puberty initiation, fertility, and reproductive endocrinology.
Kisspeptin acts through the GPR54 (KISS1R) receptor on GnRH neurons in the hypothalamus, causing depolarization and GnRH secretion. This kisspeptin-GnRH interaction is considered a critical gating mechanism controlling whether the HPG axis is activated, particularly at puberty.
Kisspeptin was discovered in 2003 as the product of the KISS1 gene, initially named metastin due to its association with cancer metastasis suppression. Subsequently, its critical role in reproductive neuroendocrinology was established, and it has emerged as a major research focus in fertility and reproductive medicine research.
Research suggests kisspeptin can robustly stimulate the HPG axis and trigger downstream LH (luteinizing hormone) and FSH (follicle-stimulating hormone) release in controlled clinical settings. It is being investigated as a potential therapeutic tool in fertility clinics for ovulation triggering and in studies of sexual and reproductive function in adults, but it remains investigational with human therapeutic use still being defined in limited trial populations.
In clinical research studies, kisspeptin has been administered intravenously at doses ranging from nanomoles to micromoles, with peak LH responses occurring 15-60 minutes post-administration. No subcutaneous or intramuscular human dosing has been standardized or approved.
This is general research/context information, not medical advice or a recommended protocol.
Combining kisspeptin with GnRH analogs, gonadotropins, or other reproductive hormones outside clinical trials creates complex, layered, and unstudied neuroendocrine risks.
If you are going to research a compound, verifying identity and purity is the single most protective step. Independent analytical testing and sterile-handling supplies reduce risk.
Compare testing optionsNo. Kisspeptin is investigational and not FDA-approved for any therapeutic use. It is being studied in clinical research for reproductive and fertility applications, but it is not an approved therapy you can obtain or self-administer outside a clinical trial.
Research suggests it can stimulate reproductive hormone signaling and is being studied in relation to sexual function and erectile dysfunction in men. However, it is investigational with undefined and unstudied long-term effects. We do not provide guidance for self-administering it.
Research shows that kisspeptin signaling is essential for initiating puberty and the maturation of the reproductive system. Mutations in KISS1 or its receptor cause delayed puberty in humans, highlighting its critical role.
Yes. Kisspeptin directly controls hormones that regulate the menstrual cycle. Self-administering it could disrupt ovulation and cycle regularity, and is not recommended outside clinical supervision.
Medical & legal disclaimer. This site is for informational and harm-reduction purposes only. It is not medical advice and is not a substitute for a licensed healthcare professional. The compounds discussed are largely not approved by the FDA for human use and many are sold strictly as research chemicals 'not for human consumption.' Nothing here is an endorsement to purchase, possess, or use any substance. Laws vary by jurisdiction. Always consult a qualified physician and follow the law where you live.
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