| abstract |
PURPOSE:A hairdressing, containing a specific amounts of acidic mucopolysaccharide and any of tryptophan, histidine and uric acid and capable of preventing the dandruff and scalp roughening. CONSTITUTION:A hairdressing containing 0.005-5wt% acidic mucopolysaccharide, e.g. hyaluronic acid, chondroitin, dermatan sulfate, heparin, etc., or a salt thereof and 0.05-5wt% tryptophan, histidine, uric acid or a salt thereof. The use of the tryptophan together prevents the viscosity reduction of the acidic mucopolysaccharide in the presence of metallic ions or ascorbic acid. The hairdressing exhibits remarkable effect on prevention of occurrence of pathologic dandruff, skin roughening and nonpathologic dandruff. |