Is Ceria/Silica safe in cosmetics?
Ceria/Silica has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
MODERATE
Cosmetic Ingredient
Ceria/Silica
INCI: CERIA/SILICA
Ceria/Silica (CAS Not assigned (composite material)) is a cosmetic cosmetic ingredient functioning as UV Absorber. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS Not assigned (composite material) →
Function
UV Absorber
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not listed in FDA's OTC Sunscreen Monograph (21 CFR 352); cannot be used as an active sunscreen ingredient in the US
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Ceria/Silica.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Ceria/Silica — not a computed safety verdict. See the sourced toxicological data above.
Frequently Asked Questions
Is Ceria/Silica allowed in the EU?
Ceria/Silica EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Ceria/Silica do in cosmetics?
Ceria/Silica functions as: UV Absorber. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (composite material).
Compliance Tools
Check Ceria/Silica compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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