Is CERIA/SILICA safe to use in EU cosmetics?

CERIA/SILICA is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What other records share CAS 243133-71-3?

CAS 243133-71-3 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

InventoryRef 3250615/10/2010

CERIA/SILICA

Q: How do I check if my formula contains CERIA/SILICA?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

Carbonic acid, cerium (3+) salt, calcination products with silica

CERIA/SILICA is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Inventory details for CERIA/SILICA

INCI name

CERIA/SILICA

Description

Carbonic acid, cerium (3+) salt, calcination products with silica

Annex records for CERIA/SILICA

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Key data

CAS

243133-71-3

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Restriction

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Function

UV ABSORBER

How CERIA/SILICA appears in the CosIng inventory

The CosIng inventory lists CERIA/SILICA as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

CERIA/SILICA is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

CERIA/SILICA is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, CERIA/SILICA carries the following function designation(s):

UV ABSORBER

CAS 243133-71-3 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

View CAS records

Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for CERIA/SILICA

This page reproduces the CosIng inventory entry for CERIA/SILICA from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research CERIA/SILICA and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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Tools & next steps

Check your formula

Scan a full INCI list to detect CERIA/SILICA and any linked EU annex restrictions or allergen flags.

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Search similar ingredients

Find other inventory ingredients and annex entries related to CERIA/SILICA, its identifiers or nearby name variants.