Mousse Styling Strong Hold foam - strong hold and shine Propose Mousse Styling Strong acts as a support and setting product before blow-drying. Apply to damp hair before proceeding with styling using a blow dryer and brush. To define waves and curls: wash your hair, towel dry, apply the product, and let it air dry, or dry with a diffuser. Styling Mousse ensures hold and volume without weighing down the hair.