| 摘要 |
PROBLEM TO BE SOLVED: To provide a hair dyeing method capable of maintaining the color retention for a long period of time, even for gray hair dyed by a dye poor in color retention such as a basic dye and even when shampooing or the like is repeated.SOLUTION: A hair dyeing method for gray hair includes: a first step of applying a dyeing liquid to a hair including gray hair and leaving it for a predetermined time; a second step of rinsing off the excessive dyeing liquid from the hair to which the dyeing liquid is applied; and a third step of applying an aqueous solution of tea powder to the hair after the second step and leaving it for a predetermined time. |
