Solve the challenges of unruly, medium to coarse hair. Sleek Shampoo with 24HR Smooth TechnologyTM/MC. The shampoo cleanses as it conditions and helps repair damage. Smoothes and controls frizz with all day humidity protection*. Salon Perfect Results: looking totally smooth, shiny, defrizzed hair from shampoo to shampoo*.Insturmental Test *When using the system of shampoo, conditioner, leave-in cream.