NO GOOD. xen is the devil, i'm not kidding. i was sittin in class one day when i was takin it, and all of a sudden i felt my heart go "ba dum bum.....bum......bumbum.......bu...." and i thought i was dying. haven't taken it since. it totally messes you up.....stick with exercise and vitamins....natural sources of energy. while it's still tempting to try other products out there, it also still freaks me out. i wanna lose some weight, but i also don't wanna be DEAD to do it.
