Redken Iron Silk 07 Straightening Spray will fight frizz & seal&65440;shine and&65440;smoothness when you use a flat iron.&65440; It will protect hair up to temperature of 400&65456;F and&65440;features Redken's Heat-Endure Technology with ceramides & conditioning agents. How to Use: Spray on dry hair section by section as you flat iron.