Naturally and artificially flavored. With CMPLX6 for enhanced mental focus + high performance energy. 160 calories per 12 fl oz serving. For Enhanced Mental Focus: CMPLX6, Caffeine, Taurine, Guarana, B6, B12, L-Theanine. Caffeine Content: 144 mg/12 fl oz; 260 mg/22 fl oz. Recycle NOS bottles. drinkNOS.com. Product of USA.