Red plaques covered with relatively thick scales appear on the scalp. This shampoo helps eliminate scales and soothe redness and itching. Key Components Micronized sulfur Salicylic acid Ichthyol Indication Dandruff How to use Apply to a damp scalp. Rinse. Reapply and leave on for 3 minutes. Rinse thoroughly. Use 2 to 3 times a week for 6 weeks minimum. Rinse in case of contact with eyes. Starting 18 years old.