Namely
Alumina, also known as aluminum oxide, is a naturally occurring mineral found in bauxite. It is a material that has been used for over 40 years for the development of prostheses (including those of the hip). It is also used in dental implants. It is used in whitening type toothpastes as an abrasive agent and thus promotes the removal of dental plaque by friction (with the toothbrush). It is also used for its absorbing properties and its waterproof nature. It also functions as an anti-caking and absorbing agent. It is found in many make-up products such as blush, powder foundation, lipstick and facial cleanser. It is authorized in organic.