Matrix Total Results Mega Sleek Iron Smoother Defrizzing Leave-In Spray helps protect against heat damage up to 450 F and humidity for all day frizz control and smoothness. A professional product styling essential for a volumizing salon-perfect blowout. Heat Protectant. Protects against heat damage up to 450 degrees. Protects against humidity for all day frizz control and smoothness. Shea butter for increased manageability.