For a high qualiity GH like US pharm grade or Hyge, you could get away with a little less, but 2iu would probably still be a good dose. You can try less though, like 1 or 1.5 iu. Just understand that GH has a very mild impact and it takes a long time to see results. So the less you take, the longer it will take to see the effect. And yes, you can use GH with var. Steroids and GH compliment one another quite well.