HCG

Human Chorionic Gonadotropin (hCG) is a naturally occurring hormone that acts as a signaling molecule in the endocrine system. It mimics luteinizing hormone (LH), prompting the body to stimulate hormone production—most notably supporting progesterone production in women and testosterone production in men. hCG plays a critical role in reproductive function, fertility treatments, and early pregnancy support, and has also been studied for its broader effects on hormonal balance and metabolic signaling.