With other natural flavors. Thirst quenching energy drink. 30 calories per bottle. Non carbonated. Why drink Hydrive Extra Strength? Because sometimes you need a little bit extra to conquer the world. Extra Strength Formula: 195 mg caffeine; 200% DV vitamin B3, B5, B6, B12; 25 mg yerba mate; 6 g sugar - 30 calories. Please recycle. Caffeine Content: 195 mg/bottle.