Database/Opacifying/Cerium Oxide
100% natural origin · ISO 16128

Is Cerium Oxide natural?

Yes. Cerium oxide is a mineral compound with no organic or petrochemical fragment.

INCI nameCerium Oxide
CAS1306-38-3
FunctionOpacifying
FeedstockA rare-earth mineral oxide, typically refined from mined…

How we scored it

Inorganic rare-earth mineral oxide; mineral origin, natural regardless of renewability. 1.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

A rare-earth mineral oxide, typically refined from mined cerium-bearing ores. Classed as natural mineral origin.

In plain English

A mineral powder used for its light-scattering, opacifying properties in some formulations. It is refined from naturally mined rare-earth ore.

Structure

2D structure of Cerium Oxide

PubChem CID 9905479 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Cerium Oxide. PubChem CID 9905479. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CERIUM OXIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CERIUM OXIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CERIUM%20OXIDE