I recently got suspicious of my 17 y.o son gains both in strength and vascularity. He started bragging how after not lifting for about a month his bench just keeps on going up and so on. And my wife and I both noticed his getting bigger and more cut, also mood swings. He of course denied everything. I finally confronted him and he said he has been taking "preworkout testosterone booster" for two weeks. He was buying it from another kid in school. When asked about the name of the compound, he said he didn't know, but he would find out. I asked him if that was tren and made him stop taking it, later on found out it was trenadrol, bought for $5 a pill. The seller had no clue about, age limit, BB forums, PCT, support supplements, ugh... We watched my son's health for possible issues and luckily there is nothing so far. What frustrates me is that I have talked with him regarding steroid use and possible issues. I even said that if he decided to do so, I am not going to stop him unless he is under 25 y.o. I thought I brainwashed him good, apparently not. He stopped though and that is a good thing. But, as a parent you gotta always watch out...