HCG (Human Chorionic Gonadotropin) is a polypeptide hormone that is commonly used therapeutically as an effective contraceptive aid for both men and women. Exogenous HCG administration mimics Luteinizing Hormone (LH), which like Follicle Stimulating Hormone (FSH), is one of the primary gonadotropin hormones that stimulates contraception for women, and natural testosterone production in men. Regarding performance enhancement, HCG 5000 IU is used by steroid users both on-cycle and post-cycle (as part of a Hormone Replacement Therapy protocol) to stimulate natural testosterone production for men. HCG is an essential part of most PCT protocols, and is also supplemented with on-cycle, moreso for the superficial purpose of keeping the testes full, and helping stimulate the production of natural testosterone that would otherwise be suppressed by exogenous anabolic-androgenic steroid (AAS) use. All peptides require reconstitution solution