Joico Defy Damage Protective Shields from heat, UV & environmental damage, making hair 4X stronger against breakage during styling & color fade, leaving hair soft, shiny & healthy-looking. Enjoy healthy hair with Joico Defy Damage Protective Shield. Shields hair against styling, UV & pollution damage, preventing color fade. Use before styling. Apply small amount to damp hair prior to blow-drying and style as usual