you need to beat his ass, ground him, dont let him leave the house, he is going to fuck himself up in the longrun at the age of 16, you need to stop him, it is for your own sons safety, dont say there is nothing you can do, if someone was going to harm your son, Im sure you would do something, so now he is harming himself, you need to stop him immediatly, do whatever it takes, but he can have lots and lots of health risks cuz of what he is doing at his age, no matter how much he trains or how healthy he is, he is only 16, he is still in puberty, he is messing with his testosterone production and levels and messing with his liver too... whatever you do, do not let this continue, for the sake of your sons health... I know your a mom, but I have a 4 year old and if he ever turned 16 and started juicing, I would beat his ass till he understood how seroise it is...now if you cant beat him, then try educating him as much as possible, make him read these comments, he probly thinks he knows what he is doing, but the more he learns, the more he may realize that with alot of food and protien shakes, he can achieve the same amount of muscle that he wants,,... he does not need juice, his test levels at his age are naturally high, with the proper diet and training, he can achieve goals quickly in the gym with a little education...its all about diet anyways, he is not going to gain muscle off the steroids without a proper eating regimine in place anyways, and will just be potentially harming himself for no reason...dont get too scared tho, Im not saying that he definatly is gonna hurt himself, he may turn out fine, but why take that risk???