So water with some sort of caffeine in it or something? Darn it, that was going to be my invention!
no caffeine in propel, but i have had caffeinated water in the past, i don't think that made it in the marketplace though. i think it was called aquaJOE or something like that.
No caffeine in Propel, but a few vitamins and two grams of sugar. For caffeine you have to drink Red Bull. I drink that every now and again.