Ergothioneine
A cosmetic ingredient used as antioxidant in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Ammonium, [1-carboxy-2-(2-mercaptoimidazol-4-yl)ethyl]trimethyl-, hydroxide, inner salt, L-(+)-
What does it do?
Ergothioneine is listed in the EU cosmetic ingredient inventory with the following declared functions:
-
Antioxidant
neutralises free radicals to slow oxidative damage to the formulation or skin
EU regulatory status
Ergothioneine is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.
Frequently asked questions
What is Ergothioneine?
Ergothioneine is a cosmetic ingredient catalogued in the EU CosIng database. Ammonium, [1-carboxy-2-(2-mercaptoimidazol-4-yl)ethyl]trimethyl-, hydroxide, inner salt, L-(+)-
Is Ergothioneine allowed in cosmetics in the EU?
Yes. Ergothioneine is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Ergothioneine do in cosmetic products?
Ergothioneine is declared in the EU cosmetic ingredient inventory with these functions: antioxidant.
What is the CAS number of Ergothioneine?
The CAS (Chemical Abstracts Service) number for Ergothioneine is 497-30-3.
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