You can site inject anywhere you can reach the subcutaneous layer. Pinch the flesh and pull back, then insert the needle in the "pocket" underneath. Doesn't absorb quick enough if you inject into the adipose tissue. Do not inject intra-muscular, though it can be done, it is not recommended. GH is a site injection, where it is shot is where it will burn the most noticeable fat. Most people do it in the stomach since that is a typical sub q shot with most of the fat being in that area.