Kisspeptins are a group of neuroendocrine peptides that stimulate the release of Gonadotropin Releasing Hormone (GnRH) and is involved in the regulation of developmental sex hormones at the beginning stages of puberty. There have been problems in maturation centered around receptor mutations for kisspeptin. Kisspeptins are encoded by the KISS1 gene, which was originally identified as a human metastasis suppressor gene for melanoma and breast cancer. Kisspeptins have shown therapeutic benefits regarding the upregulation of the endogenous production of Luteinizing Hormone (LH) and Follicular Stimulating Hormone (FSH) through the HPA axis. Thus, it can stimulate Leydig cells to produce testosterone without the result of hypogonadism shown with exogenous testosterone usage. The expression of Kiss1 has also been altered in other situations of energy imbalance such as obesity and diabetes. It has also been shown to reverse the effects of hypogonadotropic hypogonadism. It also shows other physiologic effects such as helping with egg implantation and maturation in reproduction, as well as the prevention of ectopic pregnancy. Further, in the kidneys, it has been shown to increase aldosterone production as well as pregnenolone breakdown and kisspeptin – angiotensin2 production.