First of all 2.5ius will nor results in anything but the general feeling of well being. For fat loss you have to be using 4-6ius for muscle gain 8ius and up. Second, if your new you should definately not start with GH. Its expensive, your too young for it and you could be using your money in better ways. 25 is established as the minumum age for AAS, 30 should be the minumum for GH. You should have a couple cycles under your belt also. HGH is not a wonder drug. If your body fat is at 20% its not gonna take you to 7%. What HGH will do will help you surpass your limits. But, you need to get to them first. At 25 yrs of age your body is still producing a decent amount of naturak GH, you could ruin your body’s GH pulse.