| abstract |
An oxidation-type hair bleach or dye which is composed of a first lotion containing an alkali agent and a second lotion containing an oxidizing agent, contains the following components (A), (B), (C), and (D) in amounts described below based on the whole of the mixture of the first lotion with the second one, and has a pH of 8 to 12: a water-compatible organic solvent exhibiting an octanol-water partition coefficient (logP) of 0.3 or above at 25°C and having a molecular weight of 200 or below: 8 to 40 wt%, an alkali agent: 0.1 to 10 wt%, an oxidizing agent: 0.1 to 12 wt% in terms of hydrogen peroxide, and water: 25 to 70 wt%. This hair bleach or dye has a high bleaching power, can dye the hair in a good bright color, and is lowered in the irritant stench and the irritation to the scalp. |