Get an extra blast of energy to keep you going all day! Xtra™ Energy Shots enhance concentration and improve performance, plus they have zero calories or sugar, are packed with folic acid and vitamin B12, and have low sodium and natural flavor. Extra strength formula contains 75mg more of the specialized energy blend than original. Case includes 48 – 2-oz. bottles of grape-flavored Extra Strength Stacker 2® Xtra™ Energy Shots.