Montmorillonite Dobry Składnik absorbujący Kontrola nadmiaru sebum Montmorillonite opis Type of clay that’s a mix of bentonite (another clay) and fuller’s earth, the latter being a white to brown substance found in sediment. Like all clays, montmorillonite has absorbent properties and can be a helpful ingredient for oily skin. It also functions as a thickener.