Pre-workout stimulant C4 Extreme Energy is a balanced blend of creatine, beta-alanine, citrulline malate and C4® Extreme Energy formula, that will help you to gain the best results. It contains plant extract and 300 mg of caffeine, which effectively increases endurance performance at a dose of 3mg/kg of body weight. Moreover, it also contains vitamin C, B-group vitamins, calcium and potassium. Composition of this pre-workout product will give you the ability to be better than ever before.