When you think about treating blemishes, this metal probably isn't the first remedy that comes to mind. But King says silver, specifically in colloidal form (particles suspended in liquid), has stellar antimicrobial powers that battle breakouts. Beverly Hills aesthetician Sonya Dakar– the woman responsible for Gwyneth Paltrow's glow– uses it with probiotics and soothing rosemary and sage in her clarifying face wash.