White Clay is sometimes called China clay and is made up of the mineral called kaolinite. It is many types of kaolinite/kaolin clays available but, white is the most purest form. It contains silica, copper, selenium, maganese magnesium, and zinc. Where it is mined plays a major role in how to use it and for what skin problems. Kaolin clay has a much lower pH level than Bentonite and other clays, meaning it’s far less damaging to the pH level of your skin. You can use this clay on all skin types but it works best for sensitive skin that is also oily.