Strengthen and protect your hair as you flat iron in ultra-straight styles with Redken Iron Silk 07. Its dual action formula works with, yet protects from heat, leaving a weightless shiny finish with a natural, touchable feel and zero frizz! Redken Iron Silk 07 will leave your hair smooth and silky with natural movement. Its heat-endure technology softens hair with conditioning agents while helping to protect from thermal damage. So for frizz-free styles with lasting smoothness, iron in some much needed silk with the help of Redken! Directions of use: Spray on dry hair section by section as you flat iron.