Inventors:
Guiru Zhang - Fairfield OH, US
Bryan Patrick Murphy - Loveland OH, US
Assignee:
The Procter & Gamble Company - Cincinnati OH
International Classification:
A61K 7/13
US Classification:
8405, 8406, 8408, 8411, 8568, 8570, 8573, 5483714, 5483717, 5483731, 546251
Abstract:
Hair dyeing compositions are provided which comprise at least one coupler selected from N-aryl-m-phenylenediamine derivatives, 2-substituted N-aryl-m-phenylenediamine derivatives, and N-aryl-m-diaminopyridine derivatives, in combination with and at least one diaminopyrazole primary intermediate.