Increase muscle stamina, decrease recovery time, and help reduce exercise-related muscle breakdown with USN Pure Glutamine Micronized Powder. Containing 5 grams of L-glutamine per serving, this micronized powder acts as a multi-functional amino acid to help restore depleted L-glutamine levels in your muscles following an intense workout. This unflavored powder mixes easily with water, fruit juice, or your favorite beverage. For best results, use before and after a workout and before bed.