theres a lot left out of this question, but i'm going to go ahead and share some info about competing and AAS. first off, i am going to assume you're talking about competing in a bodybuilding contest. in the NPC, there are tested shows, sometimes called natual shows, and there are untested shows. in an untested show, known as an open show, you can use whatever you want in your contest prep. open shows are the standard. if you want to use AAS, you should compete in an open show. tested shows are for the athlete who doesnt want to take part in using drugs to compete. they are a special event set apart from regular BB shows. of course there are always people who will break the rules, that doesn't mean you should too.