A hypothalamic neuropeptide hormone that triggers puberty onset and regulates reproductive function. Key regulator of GnRH release.
Kisspeptin-10 stimulates GnRH release and is an endogenous GPR54 ligand. A single administration has been reported to boost LH ~2.5-fold and increase testosterone from ~479 ng/dL to ~692 ng/dL within hours.
Kisspeptin-10 is a neuropeptide product of the KISS1 gene, consisting of a conserved C-terminal 10-amino-acid sequence. It binds the G-protein-coupled receptor GPR54, directly stimulating the hypothalamus to release GnRH at the top of the HPG axis.
In PCT contexts, typical dosing is 0.1-0.2 mg SQ 2-3x weekly.