Amidinocysteine
A cosmetic ingredient used as hair waving or straightening in skincare, haircare, and personal-care products sold in the European Union.
What is it?
2-Guanidino-3-mercaptopropionic acid
What does it do?
Amidinocysteine is listed in the EU cosmetic ingredient inventory with the following declared functions:
-
Hair waving or straightening
permanently changes the shape of hair through chemical reduction and re-oxidation of the hair's disulfide bonds
EU regulatory status
Amidinocysteine 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 Amidinocysteine?
Amidinocysteine is a cosmetic ingredient catalogued in the EU CosIng database. 2-Guanidino-3-mercaptopropionic acid
Is Amidinocysteine allowed in cosmetics in the EU?
Yes. Amidinocysteine is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Amidinocysteine do in cosmetic products?
Amidinocysteine is declared in the EU cosmetic ingredient inventory with these functions: hair waving or straightening.
What is the CAS number of Amidinocysteine?
The CAS (Chemical Abstracts Service) number for Amidinocysteine is 40454-21-5.
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