Process and kit for dyeing hair

Details Process and kit for dyeing hair Process and kit for dyeing hair

A - Human Necessities

61

K

A61K 8/44 (2006.01) A61K 8/49 (2006.01) A61Q 5/10 (2006.01) A61K 7/13 (1990.01)

Patent

CA 2119573

A process for dyeing hair by preparing and thereafter applying to the hair an aqueous reaction medium comprising a dopa species and an oxidant, said aqueous reaction medium further containing a buffer to maintain the pH in the range from 6 to 10 during the reaction, and removing said aqueous reaction medium from the hair within about one hour following its preparation.

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