Schwarzkopf Osis Curls & Waves enhances curls and waves – reducing frizz – adding shine and softness. It also works to calm straight but unruly hair - improving its manageability and eliminating static fly-aways. It helps you take the beauty of your natural hair to the next level thanks to definition and support. Usage: Apply to damp wavy or curly hair and define natural texture with fingers. Let it dry on its own or dry it with a diffuser.