John Frieda Frizz Ease Heat Defeat Protective Styling Spray keeps hair smooth and straight for up to 24 hours. Containing a special ThermaGuard Complex, the formula helps protect against damage from heat tools such as blow-dryers and flat irons. - Protective styling spray works with heat tools to condition and straighten strands as it helps block humidity and rehydrate hair for ultra-safe styling. - With Jojoba oil and humectants, formula silkens strands and replenishes moisture.