I bought some Super Charge to help with my work-outs in the gym and on rides. The bottle recommends taking 1 scoop for intense work-outs, and two scoops for super intense workouts. I took two. I went to the gym and didn't feel a single thing! I came home afterwards and fell asleep! This stuff is complete crap!
http://www.bodybuilding.com/store/lab/super.html