This list contains substances whose use in cosmetic products in the EU is banned except under certain conditions as indicated in the annex. The list specifies the field of application or use, maximum allowable concentration limits in finished products, and any additional limitations.
| Ref No. | 2a | |
| Restrictions | Product type, body parts | General use products for hair waving or straightening |
| Maximum Threshold | 8 % | |
| Restriction(s) | For general use | |
| Qualifier(s) | Ready for use pH 7 to 9.5 | |
| Expressed As | As thioglycolic acid | |
| Warning Label | Conditions of use: Avoid contact with eyes. Rinse eyes immediately if product comes into contact with them. Wear suitable gloves. Warnings to be printed on the label: Contains thioglycolate. Follow the instructions. Keep out of reach of children. |
European Chemicals Agency
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