Bigger. Better. Faster. Stronger. Rockstar is the world's most powerful energy drink. Enhanced with the potent herbal blend of Guarana, Ginkgo, Ginseng and Milk Thistle, Rockstar is scientifically formulated to provide an incredible energy boost for those who lead active and exhausting lifestyles-from athletes to rock stars. Enjoy this fully refreshing lightly carbonated beverage super chilled.