When I first started looking into this I made the mistake of thinking it would be a fast-acting solution like a pre-workout or a short-term booster but I quickly learned that the time investment is the most critical factor. I spent a lot of time trying to figure out how long does it take for growth hormone to work bodybuilding because I didn't want to start something if I couldn't finish it properly. What I found from my own experience and a lot of reading is that you really need to be thinking in terms of months rather than weeks because the fat loss and lean tissue development are very gradual processes. It wasn't until I reached the five-month mark that I actually noticed my body composition shifting and my recovery time dropping to the point where I could train heavy five days a week without feeling completely destroyed. Most of the guys I know who tried to stop after eight or ten weeks ended up disappointed because they didn't give their receptors enough time to actually utilize the increase in levels for real structural repair.