I am not trying to flame you but you really should do research on this. One is completely different than the other. HGH is growth hormone made up of 191 amino acids. The other (Sustanon 250) is an injectable steroid, and one has nothing to do with the other. body builders take HGH because it creates new muscle cells where as steroids only slow down protein synthesis. I personally hate Sustanon and would rather do Test Enanthate or Cypionate. One also will cost you anywhere from $10-14 an amp for Sustanon and HGH will cost you anywhere from $450-$650 a kit. Hgh also has to be taken for a minimum of 12 weeks to see results which is about 2-3 serostim kits. there for it is more expensive. You will be looking at a price range of $1000 - 1500 for HGH use. But alone will not produce any great results that is why when on HGH it is recommended to do test, and other gear so you will actually make some real good gains. You should definitely do research before you do anything because it is obvious you are new to this and you will be easy to scam. you also dont want to hurt yourself