Patent ID: 6736861
Filing Date: 2004-05-18
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 3 minutes with a recently made mixture of: i.) an alkaline composition comprising a dye intermediate in a shampoo base or in a conditioner base; and ii.) an acidic composition comprising an oxidizing compound in a shampoo base or in a conditioner base; b.) rinsing said mixture from said hair with water; with the proviso that when a conditioner base is present in a.) i.) above, an independently selected conditioner base is also present in a.) ii.) above; and when a shampoo base is present in a.) i.) above, an independently selected shampoo base is also present in a.) ii.) above;and wherein said number of treatments with an identically formulated mixture is from 2 to about 30; and wherein said set time interval between each two consecutive treatments is between about 8 hours and 30 days.