这些成分会轻轻地去除脱落的皮肤，去除堵塞毛孔形成痤疮的细菌和污垢。
These ingredients will gently exfoliate skin while removing bacteria and dirt that can clog pores and form acne.
正常寄生于皮肤表面的细菌也是引发痤疮的因素。
Bacteria that normally live on the skin also play a role in acne development.
在一些孩子中，免疫系统对痤疮的形成起来很大作用，他们对滞留在毛孔中的细菌过敏。
The immune system can play an important role as some teens can be extra sensitive to the bacteria that may become trapped in their pores.
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