Joico Smooth Cure Thermal Styling Protectant Flat iron and blow-dry spray seals in the Smooth Cure Leave-In Rescue Treatment, finishes hair, providing an additional layer of KeraShield Complex for dramatic smoothness and softness. Protects hair from texture and curl reversion, humidity, and thermal damage up to 450 degrees fahrenheit. Curly/frizzy/coarse hair. INSTRUCTIONS FOR USE: Section damp or dry hair; spray sections evenly. Style with thermal tools. END RESULT: When used as a complete system, Smooth Cure: - Leaves hair smooth for up to 72 hours - Reduces frizz by 79% - Provides 24-hour high humidity protection