a) Hair waving or straightening products:
(1) general use
(2) professional use
(b) Depilatories
(c) Other hair-care products which are removed after application
Maximum authorized concentration in the finished cosmetic product (a)
(1) 8% ready for use; pH 7 to 9.5
(2) 11% ready for use; pH 7 to 9.5
(b) 5% ready for use; pH 7 to 12.7
(c) 2% ready for use; pH to 9.5
The abovementioned percentages are calculated as thioglycollic acid