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1. (WO2018043527) HAIR TREATMENT METHOD

Pub. No.:    WO/2018/043527    International Application No.:    PCT/JP2017/031067
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Aug 31 01:59:59 CEST 2017
IPC: A61K 8/36
A61Q 5/06
A61K 8/22
Applicants: KAO CORPORATION
Inventors: NAGASAKI, Ayaka
Title: HAIR TREATMENT METHOD
Abstract:
A hair treatment method comprising steps 1 to 5 to be performed in the following order: 1. a step of applying a first composition to hair, wherein the first composition is acidic and comprises one or more selected from the group consisting of glyoxylic acid, glyoxylic acid hydrates, glyoxylates, and glyoxyl amides; 2. a step of leaving the hair having the first composition applied thereto to stand; 3. a step of heating the hair with a high temperature heating device; 4. a step of applying a second composition to the hair, wherein the second composition comprises an oxidizing agent, has a pH of 0.5 or more and less than 8.0, and has a content of a dye component of less than 0.4% by mass; and 5. a step of leaving the hair having the second composition applied thereto to stand.