An iron spray that protects hair from hot tools up to 450° F/232° C. The ultimate protection against hot tools, Caviar Perfect Iron Spray protects each strand up to 450° F/232° C. This heat-activated spray locks in moisture, sealing and smoothing the hair cuticle to eliminate frizz and split ends, and locks out humidity, preventing style reversion for sleek or curly locks that last. ThermoSeal Technology: Dual-action, heat-activated technology locks in moisture and locks out humidity.Forms a protective barrier around every hair strand to fight frizz and help straight or curly hair styles last longer. 4.1 oz.