How much HGH (iu's per day) should I use? My Goal is to Lose fat first and gain Muscle second. I am 180lbs and 12%bf what is the minimum I can use and see results?? Thanks!! MP I'm 5'11, I have small bones but I'm carrying some fat, 40yrs old, have been working out for 15yrs, getting ready to do a cycle of test. looking for fat loss, anti aging, and of course muscle gain.