Will the colloidal silver products currently on the market turn you blue?

目前市场上的胶银产品会使你变蓝吗？

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But there's no proof that taking colloidal silver by mouth has any benefits.

但并没有证据证明口服胶银有任何益处。

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But there's no proof that taking colloidal silver by mouth has any benefits.

但并没有证据证明口服胶银有任何益处。

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