Smooths straight, wavy, curly or coarse hair. Sulfate-Free, Color Safe & Extensions Safe. To Use: After shampooing, massage into hair and comb thru. Rinse after 2 minutes. Designed for use in combination with SmoothIT! Frizz Taming Shampoo. Exclusive CortexShield+ delivers nourishment to the root, creating a hydrophilic & hydrophobic humidity barrier to keep frizz OUT and hair health IN. SmoothIT - Frizz Taming Shampoo features a luxurious sulfate-free formula, enriched with apple & sweet cherry, smooths straight, wavy, curly or coarse hair and leaves it more manageable with mirror-like shine.