Daily Vichy Dercos Anti-Dandruff Shampoo For Normal To Oily Hair is formulated with Selenium DS, Ceramide and Methanol to help eliminate up to 100% of visible flakes* and provide up to 6 weeks anti-dandruff protection**. This formula leaves the scalp feeling purified, smoothed and cleansed, alongside reducing excess sebum. Suitable for a sensitive scalp. Key Dermatological Ingredients: - Selenium DS - Ceramide - Methanol Clinically Proven Results: - Eliminates up to 100% of visible flakes* - 6-week anti-dandruff protection** - Immediate results - Scalp is cleansed and purified - Hair feels lighter and soft * Consumer test, 262 subjects. ** Clinical study, 42 subjects. Anti-dandruff effect for up to 6 weeks after 4 weeks of usage.