Care Derma Sensitive Mask soothes and deeply moisturizes dry, itchy and irritated scalps. The dermatologically approved formula immediately reduces itching, while the rich mask intensely moisturizes. Properties: The dermatologically approved formula reduces itching while intensely hydrating the hair. Application method: Apply after shampooing to towel-dried hair, from roots to ends. Leave on for 3 minutes. Rinse well with plenty of water.