An inorganic oxide of cerium, used as an opacifier.
What it is
Cerium oxide is ceric oxide, CeO2, an inorganic compound of the rare earth element cerium. CosIng lists it as an opacifying ingredient.
Where it is used
Found in make-up and skin care products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not show the particle size or whether the particles are surface-treated.
Functions
- Opacifying
- Reducing transparency or translucency of cosmetics.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.