In the world of skin care, there’s some controversy about the role—and the necessity—of toners for mature skin. “One of the traditional roles of a toner is helping maintain the skin’s naturally acidic pH,” she says. Vogue’s Favorite Toners for Mature Skin:What’s more, she says, modern toners have evolved to serve more than their traditional functions. Many are formulated to hydrate, support the skin barrier, and deliver beneficial ingredients, making them a completely different category of product than they were decades ago.” “For mature skin, that means prioritizing hydration, barrier function, and healthy cellular communication over aggressive stripping or overexfoliation.