染头发要多久

来自田振涛医生的专业解答，快打开看看是否又获得了新的知识点～

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快速问医生

病情分析：染发一般需要20~40分钟左右，一般需要结合自身的状况决定，并不能一概而论，如果自身的头发不容易上色，则使用的时间比较长，大概在40分钟左右。染发剂本身是一种化学物，对身体有一定的害处，时间过久会对头皮和头发造成伤害

田振涛

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提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医