Directory For a Sex Photos : howstuffworks: Why can colloidal silver turn your skin blue? When used topically, silver has antibacterial properties that can be medically useful. A coating of silver nanoparticles on a wound dressing, for example, creates a barrier that germs can’t
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» howstuffworks: Why can colloidal silver turn your skin blue? When used topically, silver has antibacterial properties that can be medically useful. A coating of silver nanoparticles on a wound dressing, for example, creates a barrier that germs can’t