| 摘要 |
<p>Disclosed is an acidic hair dye composition comprising 1.5-4.5 mass% of an ionic water-soluble polymeric compound, 0.005-1.5 mass% of at least one buffering agent selected from the group consisting of organic acids and salts thereof and inorganic acids and salts thereof, and an acidic dye. A 10-mass% aqueous solution of the acidic hair dye composition has a pH value of 4-6, and hair after the dyeing with the acidic hair dye composition has a pH value of 5.5-6.</p> |
