personally i havent taken the stuff, the only thing i trust from bsn is no xplode, however my friend tried sum atro phex the other week and he took some and i picked him up for the gym and half way through his workout he had a huge headache, so after the workout i dropped him home and he said he couldnt get to sleep that night and he hasnt taken them since. However everyone is different so i hope they work fine for you.
__________________ live for yourself... nobody else