The SP Smoothen Mask brings control to unruly hair, removing tangles & making it more manageable. It is infused with the Active Cashmere Complex that increases suppleness & hair softness. It also provides a rich assortment of vitamins that help to smooth & protect the hair. It removes dullness & frizz. To use: Apply to the wet hair & leave for 5-10 minutes. Rinse thoroughly.