The ingredient, explained

Ci 77891

A published expert safety assessment covers the exact ingredient in the specified exposure context.

Ingredient guide

What it is and what it does

CI 77891 is the Colour Index identifier for titanium dioxide, a white pigment. A pigment name on an ingredient list does not identify the particle form or establish the finished product's sunscreen protection.

About this ingredient: European Union ingredient specification: Titanium dioxide Colour Index 77891 ↗

A verified formulation role is not on file for this name.

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Safety assessment

SCCS could not exclude genotoxicity for most assessed grades and could not recommend additional safe limits for oral or inhalation exposure.

What this does not tell us

Final expert advice, not clinical efficacy or blanket safety finding. Exact particle grade, coating, route and prior opinion limits matter; generic CI record lacks grade.

Sources for this summary. Published source ↗

Research review checked Oct 1, 2026

Bounded review of local candidates, exact-name indexed primary journal/PubMed safety and topical searches; not a systematic review.

Ingredient research is not proof that a product containing this ingredient works.