Receptor activation
Kisspeptin-10 activates the KISS1R receptor on or near hypothalamic GnRH neurons.
P—12 • Investigational research profile
Kisspeptin-10
A concise educational overview of a reproductive signaling peptide that acts upstream of GnRH, LH, FSH, and gonadal hormone production.
Name
Kisspeptin-10
Also known as KP-10 or Kp-10
- Scientific classification
- Naturally occurring C-terminally amidated decapeptide derived from the KISS1 precursor protein and agonist of KISS1R
- Library family
- Hormonal
- Research status
- Investigational; reproductive-axis biology is established, with limited human pharmacology studies and no approved clinical treatment
- Regulatory status
- Not FDA approved; FDA lists Kisspeptin-10 in Category 2, and a 2024 advisory committee voted 11–0 against adding it to the 503A Bulks List
Compound overview
The shortest naturally occurring kisspeptin fragment with full receptor activity.
Kisspeptin-10 helps connect reproductive development, sex-hormone feedback, energy status, and fertility with the brain's control of the reproductive system.
It functions upstream of gonadotropin-releasing hormone rather than acting directly as testosterone, estrogen, luteinizing hormone, or follicle-stimulating hormone.
Mechanism under study
Activating the hypothalamic–pituitary–gonadal axis
Kisspeptin-10 initiates a signaling sequence that can influence reproductive hormones. The response varies with sex, reproductive status, menstrual-cycle phase, baseline endocrine function, and pattern of exposure.
Hypothalamic signaling
KISS1R activation stimulates gonadotropin-releasing hormone secretion.
Pituitary and gonadal response
GnRH stimulates pituitary LH and FSH, which influence gonadal hormone production and gamete development.
A temporary hormonal response demonstrates biological activity but does not independently establish improved fertility, sexual function, or long-term endocrine health.
Current research areas
Questions under investigation
- GnRH, LH, and FSH regulation
- Puberty and reproductive-axis development
- Hypogonadotropic hypogonadism
- Functional and hyperprolactinemic amenorrhea
- Fertility research and assisted reproduction
Evidence summary
Reported reproductive-axis findings
- LH stimulation: Small human studies show that Kisspeptin-10 can rapidly and dose-dependently increase luteinizing hormone.
- Testosterone signaling: Early studies in men reported temporary increases in LH and testosterone following administration.
- Reproductive-axis assessment: Researchers use Kisspeptin-10 to investigate whether the hypothalamic–pituitary–gonadal axis can respond to kisspeptin stimulation.
- Hypogonadism research: Proof-of-concept studies have reported hormonal responses in men with type 2 diabetes and mild biochemical hypogonadism.
- Fertility research: Much of the IVF evidence involves the longer peptide kisspeptin-54 rather than Kisspeptin-10, so those findings should not be treated as interchangeable.
- Future clinical applications: Additional trials are needed to determine how these hormonal responses may translate into fertility, reproductive, or endocrine outcomes.
These measured hormonal responses support continued reproductive and endocrine research; clinical outcomes require further study.
Educational notice
Education, not usage guidance.
This profile is provided for scientific education only. It is not medical advice, fertility guidance, hormone-treatment guidance, dosing information, or instructions for Kisspeptin-10 use. The FDA has identified concerns involving possible immunogenicity, peptide-related impurities, active-ingredient characterization, and insufficient information about safe use in the proposed patient population.
Key scientific referencesComing soon
A curated primary-source reference list will be added during the next educational expansion.