Wella Professionals EIMI Smooth Thermal Image Heat Protection Spray 150ml $35.00 A two-phase heat-protection spray that helps smooth the hair and adds light hold. Protects against styling heat up to 220°C. Shop › Wella Professionals EIMI Smooth Thermal Image Heat Protection Spray 150ml Add To Cart Added! A two-phase heat-protection spray that helps smooth the hair and adds light hold. Protects against styling heat up to 220°C.