Banned in EU

Acid Orange 24

A cosmetic ingredient used as hair dyeing in skincare, haircare, and personal-care products sold in the European Union.

What is it?

Sodium 4-[[3-[(dimethylphenyl)azo]-2,4-dihydroxyphenyl]azo]benzenesulphonate (CI 20170)

What does it do?

Acid Orange 24 is listed in the EU cosmetic ingredient inventory with the following declared functions:

  • Hair dyeing

    colours hair, either by depositing pigment on the surface or by chemically altering the hair's natural pigment

EU regulatory status

This ingredient is banned in the European Union.

Acid Orange 24 is listed under Annex II of EU Cosmetics Regulation 1223/2009 (entry 1232), making it prohibited in cosmetic products placed on the EU market.

Frequently asked questions

What is Acid Orange 24?

Acid Orange 24 is a cosmetic ingredient catalogued in the EU CosIng database. Sodium 4-[[3-[(dimethylphenyl)azo]-2,4-dihydroxyphenyl]azo]benzenesulphonate (CI 20170)

Is Acid Orange 24 allowed in cosmetics in the EU?

No. Acid Orange 24 is banned for use in cosmetic products in the EU under Annex II of Regulation 1223/2009.

What does Acid Orange 24 do in cosmetic products?

Acid Orange 24 is declared in the EU cosmetic ingredient inventory with these functions: hair dyeing.

What is the CAS number of Acid Orange 24?

The CAS (Chemical Abstracts Service) number for Acid Orange 24 is 1320-07-6 / 6371-84-2.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 15/10/2010