6-Hydroxyindole
A cosmetic ingredient used as hair dyeing in skincare, haircare, and personal-care products sold in the European Union.
What is it?
1H-indol-6-ol
What does it do?
6-Hydroxyindole 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 restricted in the European Union.
6-Hydroxyindole is listed under Annex III of EU Cosmetics Regulation 1223/2009 (entry 209). It is permitted only under specific conditions, concentration limits, or in particular product types.
Notes: Annex
Frequently asked questions
What is 6-Hydroxyindole?
6-Hydroxyindole is a cosmetic ingredient catalogued in the EU CosIng database. 1H-indol-6-ol
Is 6-Hydroxyindole allowed in cosmetics in the EU?
Only with restrictions. 6-Hydroxyindole is permitted in EU cosmetics only under specific conditions defined in Annex III of Regulation 1223/2009.
What does 6-Hydroxyindole do in cosmetic products?
6-Hydroxyindole is declared in the EU cosmetic ingredient inventory with these functions: hair dyeing.
What is the CAS number of 6-Hydroxyindole?
The CAS (Chemical Abstracts Service) number for 6-Hydroxyindole is 2380-86-1.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 06/06/2019