HAIR COSMETIC FOR PREVENTING WHITE HAIR AND FOR BLACKENING WHITE HAIR

摘要

PURPOSE: To provide a hair cosmetic containing hydroquinone-O-α-D- glucopyranoside as an active ingredient, having an activity of preventing the whitening of human hair and an activity of blackening the white hair and capable of being safely used. ;CONSTITUTION: A hair cosmetic contains as an active ingredient hydroquinone- O-α-D-glucopyranoside (having a characteristic to accelerate the activity of an oxidase, tyrosinase, for producing a melamine pigment), i.e., an α-isomer obtained by reacting hydroquinone with starch in the presence of a CGT-ase and a phosphoric acid buffer solution. The cosmetic has an activity to prevent human hair from being whitened with the aging of the hair and an activity to blacken the white hair, and can safely be used. The hair cosmetic includes hair tonic, hair treatment, hair cream, hair shampoo and hair rinse.;COPYRIGHT: (C)1993,JPO&Japio