With other natural flavor. Made with real juice lightly carbonated. B-vitamins. Taurine. Caffeine. Contains 10% juice. In Each Serving: taurine 1000 mg, caffeine 80 mg, glucuronolactone 50 mg, l-carnitine 25 mg, inositol 25 mg. Total caffeine from all sources: 160 mg per can. rockstarenergy.com. Dispose of properly.