hell if u really want a kick in the ***, go to gnc buy these tablets that are called JET FUEL. they have everything that hydroxy hardcore, lipo 6 and all those diet/energy pills have. just take one of them and you will go ape shit. lol. i drank rock star. red bull, monster, 180, 5 hour, coolah, and the one from coca cola. the tablets work the best. but if u want a drink that tastes good, than i'd go with monster energy, the one with the green claw mark, or the camo color can. i think its called monster assault. they taste the best to me. if u like citrus taste, than noothing beets coolah. but if u know someone in columbia, and they are willing to ship some coa-sek in to u, than u are made. lol. but its baned in the u.s. lol. its made from the coca leaf