This guy is gonna end up a news story. Bro, number one, you are too young to even think about using. Number 2, you do not know anything about it. Would you just eat some mushrooms you found growing in the forest? No? Well, why not? Oh they might be poisonous! You do not just go putting something in your body that you know absolutely nothing about. Number 3, you obviously have not exhausted the natural aspects of bodybuilding and dieting and cardio, so juice is out of the question for you anyways.
There is no way you should even consider using thisd stuff at this point bro. You have a lot to learn and a long way to go before it is an option. I am not coming down on you but giving you the truth.