Optimum Nutrition Gold Standard Pre Workout is an exciting new pre workout product. It contains a range of ingredients to help boost mental focus and endurance. Ingredients in Optimum Nutrition Gold Standard Pre Workout include Beta Alanine, Creatine Monohydrate and Acetyl-L-Carnitine.Each serving provides 175mg of Caffeine, which helps to support mental alertness, 3g of Creatine which increases physical performance in successive bursts of short-term, high intensity exercise and 1.5g of Beta Alanine which decreases fatigue in athletes. Acetyl-L-carnitine has also been included. It is an amino acid that is naturally produced in the body which helps the body to produce energy.For best results mix Optimum Nutrition Gold Standard Pre Workout with water and enjoy 30-60 minutes before your workout.Suitable for Vegetarians.