HCG

HCG (Human Chorionic Gonadotropin) is a peptide hormone that mimics Luteinizing Hormone (LH) in the body, stimulating the Leydig cells in the testes to produce natural testosterone and maintain testicular size and function. Medically used to treat hypogonadism and infertility, HCG is also widely used in performance-enhancing contexts during and after anabolic steroid cycles.

HCG plays a vital role in preserving fertility, preventing testicular atrophy, and kickstarting endogenous testosterone production, making it a staple in on-cycle testicular support and post-cycle therapy (PCT) protocols.