Banned in EU

Acid Green 1

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

What is it?

Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-) (CI 10020)

What does it do?

Acid Green 1 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 Green 1 is listed under Annex II of EU Cosmetics Regulation 1223/2009 (entry 1342), making it prohibited in cosmetic products placed on the EU market.

Classification: (Acid Green 1; CI 10020: when used as a substance in hair dye products)

Frequently asked questions

What is Acid Green 1?

Acid Green 1 is a cosmetic ingredient catalogued in the EU CosIng database. Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-) (CI 10020)

Is Acid Green 1 allowed in cosmetics in the EU?

No. Acid Green 1 is banned for use in cosmetic products in the EU under Annex II of Regulation 1223/2009.

What does Acid Green 1 do in cosmetic products?

Acid Green 1 is declared in the EU cosmetic ingredient inventory with these functions: hair dyeing.

What is the CAS number of Acid Green 1?

The CAS (Chemical Abstracts Service) number for Acid Green 1 is 19381-50-1.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 14/08/2020