A composition suitable for dyeing keratin fibres, especially human hair, is provided comprising a direct dyestuff and, as a levelling agent, a 2,5-dihydroxyphenylcarboxylic acid or a salt thereof.
提供了一种适用于染色角蛋白纤维,特别是人类头发的组合物,包括一种
直接染料和作为均染剂的
2,5-二羟基苯甲酸或其盐。