, Transforms unruly curly and/or frizzy hair into a straight smooth style that lasts up to 3 Days Designed to work with your hair straighteners, this weightless spray with heat protection blocks out frizz as you straighten. A revolutionary blend of polymers with keratin protein wraps each strand, sealing in straight style for up to 3 days. Keeps hair glossy, smooth and swinging with body. Safe for colour-treated and chemically-treated hair.