Among athletes, HCG is used to stimulate natural testosterone production during or after a steroid cycle which has caused natural levels to be reduced,
the testes will then start to produce testosterone even when natural LH is not present or is deficient. HCG is therefore useful for maintaining testosterone
production and/or testicle size during a steroid cycle.
Stopping a steroid cycle abruptly, especially when endogenous androgens are absent, can cause a rapid loss in the athlete’s newly acquired muscle.
When HCG is used to stimulate natural production, a notably pronounced crash may be avoided
A daily amount of 500 IU is generally sufficient, and dosage per day normally does not exceed 2500 IU.
In fact doses over 1000 IU are noted for their tendency to cause or aggravate gynecomastia, and also act to desensitize the testicles to LH.
HCG may be injected intramuscularly, subcutaneously, or in a shallow injection about 1/4″ deep with the needle going straight in. A 29 gauge insulin needle is recommended.
Injection speed should be slow.
Generally HCG is not necessary in small cycles where dosages are kept low.
However, it will help normalize things faster than if it is not used, so many choose to run it on-cycle anyway, for this added benefit.