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INCI name

CI 45380

CI 45380 (eosin)

Colorantreviewed

A red xanthene colorant listed in Annex IV.

What it is

CI 45380 is the Colour Index number of eosin, the disodium salt of tetrabromofluorescein, a red colorant of the xanthene class. CosIng lists it as a colorant. In the EU it is listed in Annex IV (colorants), with purity criteria that limit certain related fluorescein compounds.

Where it is used

Found in lipsticks, lip glosses, nail polishes and other coloured products.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

See the EU regulation section for the applicable limits and conditions. Colorants are named by CI number and may appear in any order.

Functions

Colorant
Exclusively or mainly intended to colour the cosmetic product, the body as a whole or certain parts thereof, by absorption or reflection of visible light; (precursors of oxidative hair colorants shall be deemed colorants). All authorised colorants are substances in the positive list of Annex IV to the Cosmetics Regulation 1223/2009.

EU regulation

EU · Annex IV, entry 76Disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate and its insoluble barium, strontium and zirconium lakes, salts and pigments
Conditions and warnings
Not more than 1% 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid and 2% 2-(bromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid
As of
3 November 2026 · (EC) 2009/1223
EU · Annex II, entry 13342-(3,6-Dihydroxy-2,4,5,7-tetrabromoxanthen-9-yl)benzoic acid; Fluorescein, 2',4',5',7'-tetrabromo-;(Solvent Red 43), its disodium salt (Acid Red 87; CI 45380) and its aluminium salt (Pigment Red 90:1 Aluminium lake) when used as a substance in hair dye products
As of
3 November 2026 · (EC) 2013/344

Products with this ingredient (55)

Check a full ingredient list