HAIR-DYING METHOD, A SET OF HAIRDYE FOR THE METHOD, AND TREATMENT AGENT FOR HAIR

摘要

PURPOSE: A hair dyeing method, a hair dyeing set, and a hair treatment are provided to improve safety using a HC dye. CONSTITUTION: A hair dyeing method comprises: a step of applying a base color dye liquid on hair for a predetermined time; a step of rinsing the hair; and a step of applying a catechin aqueous solution on the hair for a predetermined time.