Thanks a lot guys, I'm a responsible guy. I'm the type of guy who is fast developed, most people think I'm 23-26 years old. Fully grown beard, finished with puberty at young age. But this of course does not justify juicing at young age. I'm going to wait till i'm at least 22 years old, and then check with a doctor if my endocrine system if fully developed (If it's possible to check). Until that time i'm just going to train and read more about this stuff.