Rhein
A cosmetic ingredient used as antimicrobial in skincare, haircare, and personal-care products sold in the European Union.
What is it?
2-Anthracenecarboxylic acid, 9,10-dihydro-4,5-dihydroxy-9,10-dioxo-,Cassic Acid,Rheic Acid
What does it do?
Rhein is listed in the EU cosmetic ingredient inventory with the following declared functions:
-
Antimicrobial
kills or inhibits the growth of microorganisms
EU regulatory status
Rhein 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 Rhein?
Rhein is a cosmetic ingredient catalogued in the EU CosIng database. 2-Anthracenecarboxylic acid, 9,10-dihydro-4,5-dihydroxy-9,10-dioxo-,Cassic Acid,Rheic Acid
Is Rhein allowed in cosmetics in the EU?
Yes. Rhein is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Rhein do in cosmetic products?
Rhein is declared in the EU cosmetic ingredient inventory with these functions: antimicrobial.
What is the CAS number of Rhein?
The CAS (Chemical Abstracts Service) number for Rhein is 478-43-3.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 18/11/2014