24HR Full Boost Technology™ Controlled, defrizzed, moisturized, repaired Solve the challenges of unruly, medium to coarse hair. Sleek Blow Down™ Leave-in Cream with 24HR Smooth Repair Technology™ and medium hold smooths hair instantly and controls frizz all day. Delivers heat protection and easy glide for fast blowouts. Salon Perfect Results: totally smooth, shiny, defrizzed hair from shampoo to shampoo*. *When using the system of shampoo, conditioner and leave-in cream. For sale only in professional beauty salons. .