You use it, the caffeine soaks in and wakes you up, and anyone coming near you wakes up from the smell. If someone shakes your hand, they'll really be awake! Hahaha!
Actually, skin does absorb things. If it didn't, then things like Nicatine patches for people that want to quit smoking would have not effect on thier Nicatine cravings.
yea it does absorb some stuff. but its waterproof. and that majorly decreases the chances of this caffinated soap working. WHO KNOWS!!, this stuff might actually work. but i personally don't think that it does.