INCI name
Kaolin
Also listed as: China clay, kaolin clay
Kaolin is a soft white clay. It is used in masks, powders and some cleansers to absorb oil and to give a matte feel. It is milder than clays such as bentonite for many people, which is why it turns up in products meant for frequent use.
The INCI name is simply Kaolin. It does not describe colour or particle size. A pink or green "clay mask" may still list kaolin, with iron oxides or other clays for colour.