Green Illite Clay is efficient at drawing oils and toxins from the skin and is also often mistaken for French Green Clay (montmorillonite). Green Illite Clay is similar in structure to montmorillonite and does not expand with water. It is used for detoxification and exfoliation of the skin. Green Illite Clay can also be used in soaps (about 1 tablespoon per pound of soap) and body/foot powders.