Colorants for producing metamerism effects on keratin fibers

摘要

The invention concerns a hair-colorant carrier compound which is characterized in that it contains as developer substance at least one diaminopyrazole of general formula (I) and as coupler substance at least one benzoxazine of general formula (II). The invention also concerns a hair-colorant containing this hair-colorant carrier compound, and a method of colouring hair using this hair-colorant.