TweetYou need to stay on HGH for a minimum in my opinion and others should chime in 6 months minimum no less.Now that I'm back on it I'll be on it for 1 year and if still affordable go for 2 years. I found this article maybe its helpful
When artificial human growth hormone is injected, it stimulates the pituitary gland to produce more of the natural human growth hormone. Once released into the body, the natural human growth hormone begins stimulating other areas of the anatomy. One of those areas is the testicles, which are told to up the production of testosterone in order to increase muscle mass and sexual desire among other things. The process could be seen as a chemical "waking up" of other hormones in the male body to produce the results that would be seen in a younger man."