The Kerastase Boucles d' Art Mousse will help you achieve beautifully defined curls that stay bouncy all day. A unique water to mousse formula, the Boucles d' Art Curl Defining Mousse is formulated with xylose, vitamin E & hold-enhancing agents, which work together to combat frizz, protect against humidity & keep curls soft, shiny & naturally defined. The perfect multi-tasker, the Curl Defining Mousse will also protect hair from heat & UV rays, helping you to keep your hair looking healthy & radiant everyday. Apply throughout towel-dried hair before scrunching.