Rockstar XDurance Blueberry Pomegranate Acai Energy Supplement: * Performance energy * Performance energy * 10 calories per serving * 10 calories per serving * Branched chain amino acids and electrolytes * Branched chain amino acids and electrolytes * Taurine, caffeine, guarana and B vitamins * Taurine, caffeine, guarana and B vitamins * Lightly carbonated * Lightly carbonated