My thoughts in general on supplements that can have substantial side effects are more conservative. Here's the way I think of it. To get the reward, there is going to be more risk generally. So you can take just a protein shake and get much less reward but be much safer than loading up on a Diabonol or Winstrol steroid cocktail. Question is...is the gain worth the risk of the side effects. To me the answer was simple. It's been no problem for me to get almost any anabolic steroid from within the powerlifting community. I could also easily have taken Androstene (legal) for free since the sales reps always gave me a bottle here or there. Now at that time, Andro was claimed to have no side effects. For kicks I did a month's cycle of it. But why it wasn't worth taking was for the unknown and also, it was simply not needed. I competed in powerlifting, but not on the level that I "had to win". So if you're gonna take the supplements, do your homework, and on some, be prepared for possible permanent side effects. This isn't to deter anyone from taking anything...I'm all for the pro guys who do full roid cocktails...they have good reason to do so. But make sure that whatever you're taking, be it a legal or illegal testosterone booster is worth it.