Beyond The Zone Turn Up The Heat Flat Iron Protection Spray Is A Spray-In Treatment That Smooths Hair. Btzs Humidity-Resistant Heatstyling Aid Adds A Heat Defense Barrier That Will Protect Your Hair From Potential Drying And Damage Due To Using Heat-Styling Appliances. It Will Help Optimize The Effectiveness Of Flat Irons Curling Irons And Hair Dryers While Providing Outstanding Heat Protection. It Will Also Add Smoothness Shine And Softness To Your Hair.