No.1 Global pre-workout brand (Based on cumulative sales from 2016 to present). Elevated energy. Muscular endurance. Supports hydration. 30 servings. On the field or in the gym, this NSF certified pre-workout helps fuel your performance and hydration. Elevated Energy: Fuel your fitness journey with the energy boost from 135 mg of caffeine. Muscular Endurance: Power through trainings with CarnoSyn Beta-Alanine, which helps support muscular endurance and combat muscular fatigue (Studies have shown the benefits of CamoSyn Beta-Alanine to be correlated with cumulative use. Take C4 Sport for at least 8 weeks to experience the maximum benefits. Some individuals may experience a harmless tingling sensation which is attributable to Beta-Alanine). Supports Hydration: Helps replenish key minerals lost in high-intensity training with hydrating electrolytes.