Dietary Supplement. Better. Faster. Stronger. Party like a rockstar. Zero carbs! Bigger. Better. Faster. Stronger. The world's most powerful energy drink is now available Sugar Free! 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. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease). American made.