HCG (Human chorionic gonadotropin), sold under the brand name Pregnyl, is a kind of synthetic hormone that promotes the normal development of an egg in women ovary. As a main purpose, it is used to treat infertility in women, and also to increase sperm count in men. When it comes to bodybuilding area, the abilities it has provide its users to release more testosterone in their body. It is an essential feature especially for those who stop their cycles suddenly that cause muscle loss. To avoid such results, Pregnyl is a popular post cycle drug among both bodybuilders and athletes.
HCG has its own characteristic features identical to the luteinizing hormone (LH) that is released from the hypophysis. It is essential for men bodybuilders because luteinizing hormone mimics the Leydig’s cells in the testes which promotes the releasing of testosterone. This is why it is used by mostly to increase the testosterone production. Besides, HCG is common to use it in stack with anabolic/androgenic steroids during or after treatment. As emphasised above, oral and injectable steroids tend to cause such adverse side effects after a certain level and duration of usage. For a further information, just after a cycle the body mimics hypothalamohypophysial testicular axis due to the false signal of hypothalamus. In turn, hypothalamus mimics the hypophysis to reduce the production of FSH and LH. For this reason, the testosterone production decreases due to decreased LH. Generally the body needs a certain amount of time to make its testosterone level steady again which is a unwelcoming effect for those both bodybuilders and athletes. Discontinuing steroid cycle cause such unwanted transition phase which cause decent loss in both strength and muscle mass. At this point HCG has potent effects on the body. Taking it just after steroid cycle provides its users not to face such adverse effects due to its quick and reliable stimulant effect on the testosterone production.