7 Serums that Will Prevent Dry Skin This Winter

While a multiple-step skin-care routine isn't for everyone, cold, bitter air calls for reinforcements. Meet hyaluronic acid, the magical ingredient that plumps skin's surface in seconds and makes every other cream work that much harder. The substance attracts water, literally filling in lines and wrinkles. "I call it the Cinderella effect," says New York City-based Dermatologist Gervaise Gerstner, M.D, referring to the product's ability to make tired, red, or uneven skin look better in seconds. ...