Efficiency proven in a clinical study conducted on 63 people: - Eliminates dandruff from the 1st week - Anti-recurrence: after ending treatment efficiency prolonged for up to 4 weeks. Fibre results: instant, long-lasting shine and tone. Use every wash for 3 weeks, then once a week, alternating with a gentle dermatological shampoo, such as DERCOS Dermo-Soothing Frequent Use Shampoo. Avoid contact with eyes or damaged skin. If product gets into eyes, rinse with plenty of water. Active ingredients:Selenium Disulphide is an anti-fungal active ingredient, with a triple action on the scalp: - it eliminates micro-organisms - it exfoliates dandruff - it regulates desquamation Salicylic acid, known for its keratolytic efficiency, helps to purify the scalp whilst releasing flakes from its surface. Texture:For the very 1st time, a Selenium Disulphide based formulation presented in a light, smooth, orange-coloured texture. Fragrance: Its Mint Leaf scent gives you a sensation of freshness each time you use it.