Redken heat styling iron shape 11 is a protective and reparative thermal spray for all hair types features the exclusive heat guard complex and helps to protect hair from damage caused by heat styling tools it helps to lock in looks created by heat styling tools the clean lightweight formula doesn t leave hair stiff or crunchy and never builds up on hot tools benefits medium control protects hair from heat damage up to 400f leaves a touchable shiny finish xylose sugar ceramides and cran