Bentonite Hydrated is a suspension of microfine USP-grade bentonite in purified water. It is made from a natural clay derived from volcanic ash. Bentonite has been used in traditional medicine around the world as a natural intestinal detoxifier. When taken internally it helps the intestinal system eliminate toxins. It does this by absorbing water-borne impurities in the gut. Research suggests that bentonite can absorb pathogenic viruses, herbicides and pesticides. Bentonite is inert and not digested, so it eventually passes out of the body with the toxins it has bound. For this reason it is often recommended for diarrhea and heavy metal poisoning.