Human Chorionic Gonandotropin (HCG) is a highly purified polypeptide hormone. HCG acts as an analogue for Leutenizing Hormone (LH) and stimulates natural endogenous testosterone production in the testis. HCG helps to maintain testicular size and function while increasing ejaculate volume. HCG use during a steroid cycle and in the initial post-cycle therapy (PCT) is critical to maintaining the muscle gains made. HCG Stimulates natural testosterone production, Increases libido, and Helps to reduce muscle loss in post-cycle therapy.