| 摘要 |
PROBLEM TO BE SOLVED: To provide a hair dying agent and a hair dying method having excellent hair-dyeing properties and causing less coloration of skin.SOLUTION: A hair dying agent comprises: a first agent comprising a material which reacts with iron to develop a color, and a compound represented by the following formula 1 of 0.1 mass%-12 mass% relative to the total mass of the first agent; and a second agent comprising iron salt, where X-Xindependently represent a single bond or a hydrophilic group, where, at least one of X-Xis a hydrophilic group.SELECTED DRAWING: None |
