Calcium Oxide
Calcium Oxide is a cosmetic ingredient used as a buffering agent. It is used in 1 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex). PubMed carries 384 studies of its skin or topical use.
| INCI name | CALCIUM OXIDE |
| Function | BUFFERING |
| CAS number | 1305-78-8 |
| EC number | 215-138-9 |
| Prevalence | 1 products (0% of dataset) |
| Most used in | Skincare |
| EU status | Restricted (annex ) |
| Scientific studies | 384 on PubMed (skin/cosmetic/topical) |
| Monthly searches | 8,100 |
Used in
Sunscreens 100%
Frequently asked
- What does Calcium Oxide do in skincare?
- Calcium Oxide functions as a buffering agent in cosmetic formulas.
- Is Calcium 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 Calcium Oxide?
- It is most commonly found in Skincare products, especially sunscreens (100% of its uses).
Manufacturers with experience using Calcium Oxide
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.