man 135 is not good at all.... think about how much a 135 pound bench barbell feels like.. thats what you weight bro.. in no way can that be healthy... i have doubts you even 21, so in that case any kinda of anabolic would be a big mistake. being that you are only 135 you have a long way to go before you should consider juicing. I would think it would be logical to say you should weight AT LEAST 165-185 before you do AS. how much more definition can you possibly gain at that weight? lol you don;t want people to see right through you cause your too small.