Thiolactic Acid
A cosmetic ingredient used as antioxidant, depilatory, fragrance in skincare, haircare, and personal-care products sold in the European Union.
What is it?
2-Mercaptopropionic acid
What does it do?
Thiolactic Acid 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
-
Depilatory
removes unwanted body hair, typically by breaking down the hair shaft
-
Fragrance
provides scent or masks the natural odour of other ingredients
-
Hair waving or straightening
permanently changes the shape of hair through chemical reduction and re-oxidation of the hair's disulfide bonds
-
Reducing
a reducing agent — donates electrons to break chemical bonds, used in perms and depilatories
EU regulatory status
Thiolactic Acid 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 Thiolactic Acid?
Thiolactic Acid is a cosmetic ingredient catalogued in the EU CosIng database. 2-Mercaptopropionic acid
Is Thiolactic Acid allowed in cosmetics in the EU?
Yes. Thiolactic Acid is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Thiolactic Acid do in cosmetic products?
Thiolactic Acid is declared in the EU cosmetic ingredient inventory with these functions: antioxidant, depilatory, fragrance, hair waving or straightening, reducing.
What is the CAS number of Thiolactic Acid?
The CAS (Chemical Abstracts Service) number for Thiolactic Acid is 79-42-5.
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