Sedu Smoothing Heat Protecting Boost gives hair the protection against heat damages from flat irons or curling irons. Features Straight from Sedu's research labs and to the salon comes an amazing breakthrough in technology that lets you smooth curls, tame frizz and transform coarse hair into a salon smooth style. Iron or blow-dry hair straight getting sexy, silky and smooth results! An exclusive formula containing Crodosone W., proteins is heat activated to provide heat safe control to transform and tame frizz on even the most unruly of hair into a salon beautiful style. Gives a healthy long lasting frizz-free finish. Protects against heat damage - up to 450 F Nourishes hair with conditioning properties Provides an intense smoothing Gives a long-lasting frizz finish Transforms hair into a salon-smooth style Directions After shampooing apply 1-4 pumps evenly to towel-dried hair. To tame frizz apply 1 additional pump from roots to ends. Blow dry hair for maximum results. Reapply 1 pump from roots to ends to tame frizzes. Style as usual with your favorite iron.