Made with hair pros, approved by dermatologists, the L’Oral Professionnel Seri Expert Scalp Advanced Anti-Dandruff Dermo-Clarifier Shampoo helps to clean and clarify the strands, while comforting the scalp. n Enriched with piroctone olamine, the lightweight cream effectively removes impurities and product build-up to refresh the hair from root to tip. Hair is left feeling silky smooth and nourished, topped with a clean, fresh scent.