Patent ID: 6726729
Filing Date: 2004-04-27
Classification: A61K,A61Q

Abstract:
A method for permanently dyeing hair which comprises subjecting said hair to a number of treatments, having a set time interval between each two consecutive such treatments, wherein each treatment comprises:a.) contacting said hair for a period of about 5 seconds to about 2 minutes with a recently made mixture of: part ai: oxidative dye intermediates in a shampoo base at alkaline pH and wherein part ai comprises about 0.01 to about 5% of a conditioning agent which is a silicone; part aii: an oxidative compound in a shampoo base at acidic pH and wherein part aii comprises about 0.01 to about 5% of a conditioning agent which is a silicone; b.) rinsing said mixture from said hair with water; and wherein said number of treatments with an identically formulated mixture is between 2 and about 30; and wherein said set time interval between each two consecutive treatments is between about 8 hours and 30 days.