Killer Citrus flavor with other natural flavors. 240 mg caffeine per can. B-vitamins. Taurine. Caffeine. Contains 2% juice. In Each Serving: taurine 1000 mg, caffeine 120 mg, glucuronolactone 50 mg, inositol 25 mg. Total Caffeine from All Sources: 240 mg per can. www.rockstarenergy.com. Dispose of properly.