Cerium Oxide
Cerium Oxide is a cosmetic ingredient used as an opacifying agent. It is used in 17 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex). PubMed carries 253 studies of its skin or topical use.
| INCI name | CERIUM OXIDE |
| Function | OPACIFYING |
| CAS number | 1306-38-3 |
| EC number | 215-150-4 |
| Prevalence | 17 products (0.02% of dataset) |
| Most used in | Skincare |
| EU status | Restricted (annex ) |
| Scientific studies | 253 on PubMed (skin/cosmetic/topical) |
| Monthly searches | 4,400 |
Used in
Sunscreens 58.8%Toners 17.6%Nail Care 11.8%Eyeshadows 5.9%Setting Spray & Powders 5.9%
Frequently asked
- What does Cerium Oxide do in skincare?
- Cerium Oxide functions as an opacifying agent in cosmetic formulas.
- Is Cerium Oxide allowed in cosmetics?
- Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
- What products contain Cerium Oxide?
- It is most commonly found in Skincare products, especially sunscreens (58.8% of its uses).
Manufacturers with experience using Cerium Oxide
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.