Human Chorionic Gonadotropin (HCG) is a naturally occurring hormone produced during pregnancy. In pharmaceuticals, synthetic HCG is used primarily in fertility treatments. It mimics the action of luteinizing hormone (LH), triggering ovulation in women and stimulating the testes to produce testosterone in men. Additionally, HCG is sometimes used in weight loss programs, although its efficacy and safety for this purpose are a subject of ongoing debate. When considering HCG therapy, it is vital to do so under the guidance of a qualified healthcare provider who can ensure its appropriate and safe use for specific medical needs.