Patent ID: 6908491
Filing Date: 2005-06-21
Classification: A61K,A61Q

Abstract:
1. A method for color-revitalizing color tone of hair, comprising: applying a color-revitalizing composition to hair that has previously been dyed with an oxidative hair dye composition, said color-revitalizing composition (a) having a color determined by a color of said oxidative hair dye composition and (b) containing at least one direct dye; thereby revitalizing the color tone obtained by the hair after being dyed with said oxidative hair dye composition; and wherein a color-revitalizing composition of a color tone belonging in a circular range with a radius r of 11 centering around a point of L*=51, a*=8 and b*=19 in a color coordinate space (L* a* b* color space) is used when the color of said oxidative hair dye composition falls within a range of L* is 15 to 47, a* is −2 to 8, and b* is 9 to 30 in the color coordinate space, and wherein colors of the respective compositions are determined by colors obtained when white goat hair is dyed with such compositions.