Flavor with other natural flavors. 190 calories per 12 fl oz serving. 240 mg caffeine per container. Caffeine Content: 120mg/12 fl oz; 240 mg/24 fl oz. B-vitamins. Taurine. rockstarenergy.com. Instagram: rockstarenergy. We're here to help: 800.433.2652; rockstarenergy.com. Please recycle.