Used primarily in fertility treatments to stimulate ovulation in women who have difficulty conceiving. It mimics the natural luteinizing hormone (LH), triggering the release of mature eggs from the ovaries. In men, it is employed to address hormonal imbalances, such as low testosterone levels, by stimulating the testes to produce more testosterone and sperm. Additionally, it is sometimes used in boys with delayed puberty to promote normal sexual development. In weight loss programs, it has been controversially marketed as a supplement to aid fat reduction, though its efficacy for this purpose is not scientifically proven.