My question is that is there a huge noticeable difference between running 4 iu and iu a day? Also if there isn’t much of benefit from the amount what would you recommend for fat loss and muscle growth. 8iu a day? Yes I’ve ran gh multiple times for long periods just never taken more than 4-5 iu a day for 8-12 months. Mostly just used four at the time bc it was easier to dose my vials and cost effective.