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黑头是怎么形成的
更新时间: 2019-11-02 00:00:00  

黑头主要是由皮脂、细胞屑和细菌组成的一种栓样物,阻塞在毛囊开口处而形成的。黑头是硬化油脂阻塞物,通常出现在颜面的额头、鼻子等部位。

关键词: 黑头 怎么 形成

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