Naturally & artificially flavored. 10 calories per can. 0 sugar. 300 mg caffeine. Sugar free. COQ 10. BCAA Aminos. 300 mg caffeine. Caffeine Content: 300 mg/16 fl oz. Electrolytes for taste. rockstarenergy.com. Instagram: Rockstarenergy. SmartLabel: Scan for more food information or call 1-800-433-2652. We're here to help. 800.433.2652. Please recycle.