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The ingredient, explained

Ci 77499

Triiron tetraoxide

Cosmetic colorant
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Ingredient guide

What it is and what it does

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Cosmetic colorant
Adds colour to a product or the surface where it is applied.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

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

We have not yet published a checked study for this exact ingredient. This is a gap in our coverage, not a finding that research does not exist or that the ingredient is ineffective.

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

Follow the formula

Products containing this ingredient

All 63 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

INCI name on ingredient lists
CI 77499
CAS registry number
12227-89-3, 1309-37-1, 1317-61-9, 1345-25-1, 1345-27-3, 52357-70-7
EC number
235-442-5 / 215-168-2 / 215-277-5 / 215-721-8 / 215-722-3 / 257-870-1

Sources for this ingredient record