JON RENAU 3 PROTECT - Heat Treat Thermal SprayProtect your Crowns and Tiaras from damage with Jon Renau's heat protectant. For HEAT DEFIANT RESISTENT Crowns and Tiaras ONLY. Heat Treat Thermal Spray is heat activated and formulated for use with flat irons, curling irons and hot rollers. This non sticking thermal protectant and styling spray prevents heat damage by permitting a clean release from styling tools. Hair is left brushable and volumized. For use with both human hair and (HD) heat