Kisspeptin is a peptide that plays a central role in regulating the reproductive hormone axis by stimulating the release of gonadotropin-releasing hormone (GnRH).

This triggers downstream signaling to increase luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the pituitary gland.

Through this pathway, kisspeptin supports testosterone production in men and ovarian function in women. It is closely linked to fertility, puberty regulation, and overall endocrine balance. It is typically administered via subcutaneous injection, with dosing adjusted based on individual response and intended use.