Kisspeptin-10 (often sold as 10mg kits for research purposes) is a synthetic peptide hormone that acts as a potent regulator of the reproductive system by stimulating the hypothalamic-pituitary-gonadal (HPG) axis. It works by increasing the release of Gonadotropin-Releasing Hormone (GnRH), which subsequently raises levels of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH), ultimately boosting testosterone in males and estradiol in females.