Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Data gap: No SCCS opinion, no CIR review. Cerium compounds raise nanoparticle concerns if nano-form is used. If nano-sized, triggers EU Regulation Article 16 nano notification requirements. Must not be marketed as sunscreen active.
Frequently Asked Questions
Is Calcium Cerium Oxide safe in cosmetics?
Data gap: No SCCS opinion, no CIR review. Cerium compounds raise nanoparticle concerns if nano-form is used. If nano-sized, triggers EU Regulation Article 16 nano notification requirements. Must not be marketed as sunscreen active. The EU classifies Calcium Cerium Oxide as "permitted". Safety rating: MODERATE.
Is Calcium Cerium Oxide allowed in the EU?
Calcium Cerium Oxide EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Calcium Cerium Oxide do in cosmetics?
Calcium Cerium Oxide functions as: UV Absorber (protects the product, not the skin). It is classified as a cosmetic ingredient in our database. CAS number: Not standardized (composite of CeO₂ + Ca; base cerium oxide CAS: 1306-38-3).
What is the Margin of Safety for Calcium Cerium Oxide?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
Check Calcium Cerium Oxide compliance across multiple jurisdictions:
Related Ingredients
Is Calcium Cerium Oxide in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Calcium Cerium Oxide in your formulation.