Ghost® energy - warheads® sour watermelon: ready to drink energy drink ghost® energy contains 1000 mg of acetyl-l-carnitine, 200 mg natural caffeine, 100 mg of neurofactor™ and 100% of seven daily b vitamins per 16 oz can. Grab a case of your favorite flavor for epic focus, and legendary energy that is low in calories and contains zero artificial colors. Gluten free soy free zero sugars no artificial colors. Ghost energy drink - warheads sour watermelon 16oz. (12 cans) zero sugar