dont take my word on it. Do a search, there's threads about it around somewhere.
From memory, the fda or something banned ephedra which is the main ingredient in all fatburners. The formula goes something like 25mg ephedra/200 mg caffeine/200mg aspirin.
But the bands been liftred, but there's a maximum of 8 mg per serving.
I luv the old hydroxycut, but ever since they took out most of the ephedra, i think it sux now. So I use it with another 16g pure ephedra hcl with it.
I dont use it to lose fat/weight, I use it for the pump. once a day before a workout. To me it's lke roids, i always feel like ripping the weights till my eyes pop out.