Wella SP Clear Scalp Shampeeling is a regulating intensive anti-dandruff treatment. It sustainably fights even stubborn dandruff. Giving you long-term freedom from dandruff for up to 2 months after regular treatment over 4 weeks softness. Directions for use: Apply sparingly directly onto the scalp into damp hair, massage gently. Leave for 2 minutes & then rinse out through. Use in place of shampoo 3 times per week.