How old are you? You oviously havnt done your homework or have and knowledge to be messing around with AAS(not saying nova is an aas). Plus this is the wrong forum to be asking for advice. Go to t-nation.com, but if you ask that question their they will flame you a new *******. Lol
Novadex is usually used as a pct. Taken after a cylce of a hardcore supplement (deca,testo,tren, etc). I wouldn't recommend it for a young athlete. I would also recommend estro extreme over this product for an estro blocker. Or a pill to bump regular testoterone back up, I would recommend something more like t bomb 2.