Decription This well researched magnesium L-threonate supplement has been shown in studies to support learning and memory, as well as supporting all brain related functions.IngredientAmount Per Serving %DVMagnesium 48 mg 12%(from 667mg Magtein magnesium L-threonate)Other Ingredientshydroxypropyl methylcellulose (vegetable capsule), rice flour, monostearin.DosageTake three vegetable capsules per day in divided doses, or as directed by a health care professional. If pregnant or lactating please consult a physician.Count 90 Vegetable Capsules.