For all the Mental Focus, Drive, Endurance, and Stamina you need to crush your training sessions start right here. Developed to be one of the best pre workout experiences available, Barbarian Pre Workout uses 250mg of Arginine, Niacin, L-Theanine, and Caffeine for incredible focus and energy. With 300mg of L-Citrulline for Nitric Oxide production to increase blood flow and 1,500mg of Beta-Alanine to help push past the point of exhaustion, Barbarian can help you reach a new level of stamina. Finally, 1,250mg of Creatine Monohydrate will promote muscular development. This will have you entering the gym with purpose and leaving knowing you EARNED IT!