—深色染发剂：已被证明含有致癌化学物质煤焦油。
Dark hair dyes: They are known to contain coal tar, a carcinogenic chemical.
如果你想从浅色变成深色，你不必等很长时间(而且有时候染发剂的说明书也没有提到这一点。)
If you would like to go from really light to dark, you don't have to leave it on for as long (and sometimes hair dye descriptions fail to mention that).
更大的变化需要更多的效果。如果你完全被你深色的头发吓到了，想要立刻解决，你可以使用头发染色去除剂。
Bigger changes require more efficiency. If you are totally freaked out by your dark hair and would like an immediate solution, you can try hair dye removers.
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