Setting you up for a powerful performance, Optimum Nutrition(R) Gold Standard Pre-Workout is designed to enhance energy, improve focus and increase endurance. This pre-workout contains Acetyl-L-Carnitine HCI, N-Acetyl-L-Tyrosine and muscle matrix that includes AstraGIN(R). FEATURES: Contains 30 one-scoop servings Designed to enhance energy, focus and endurance 375mg of Acetyl-L-Carnitine HCI 250mg of N-Acetyl-L-Tyrosine Muscle Matrix including 25mg of AstraGIN(R) Use pre-workout and for anytime energy These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.