This entry shows data from the EU CosIng database. An editorial description has not been written and reviewed yet.
Functions
- Depilatory
- Breaking down the the mechanical strength of hair fibers so that they can be removed by mild scraping/rubbing.
- Hair waving or straightening
- Modifying the chemical structure of the hair, allowing it to be set in the style required (permanent waves or hair straightening).
- Reducing
- Changing the chemical nature of another ingredient by adding hydrogen (or removing oxygen).
EU regulation
EU · Annex III, entry 2bThioglycolic acid esters
- Product type
- Hair waving or straightening products
- Maximum concentration
- (a) 8% (b) 11% The abovementioned percentages are calculated as thioglycollic acid
- Conditions and warnings
- Conditions of use: (a) (b) May cause sensitization in the event of skin contact Avoid contact with eyes In the event of contact with eyes, rinse immediately with plenty of water and seek medical advice Wear suitable gloves Warnings: Contains thioglycolate Follow the instructions Keep out of reach of children (b) For professional use only
- As of
- 3 November 2026 · (EC) 2009/1223