From Manufacturer''s Label:Each serving of our Glutamine powder provides 5 grams of pure L-Glutamine because L-Glutamine may support muscle recovery from exercise.Glutamine is the most abundant amino acid in the body, comprising more than 60% of the free amino acid pool in skeletal muscle and greater than 20% of total circulating amino acids.Because it''s unflavored, you can mix it right into your post-workout protein shake.* Made with Pure L-Glutamine* Supports Muscle Recovery Effort* Unflavored Versatility* Add to Protein & MRP Shakes* Mixes Easily with a SpoonUnflavored.120 servings per container.Manufactured by: Optimum Nutrition