Bentonite, Hydrated [Intestinal] is a natural clay that comes from volcanic ash. Taken internally, it supports the intestinal system in the elimination of toxins. This product is made by suspending microfine USP-grade bentonite in purified water. Take 1 tablespoon with a glass of water twice daily as an aid for detoxification via the alimentary canal. Shake well before use. Refrigerate after opening.