Vichy Dercos Anti Dandruff DS Anti-Dandruff Shampoo for dry hair was created for people who struggle with recurring dandruff that is hard to get rid of. How does Vichy Dercos Anti Dandruff DS Shampoo work? The deep cleansing formula with a creamy, concentrated consistency contains a unique combination of two active ingredients: 1% selenium disulfide with antifungal properties that reduce dandruff and seborrheic dermatitis, Salicylic acid 1% with exfoliating properties, which cleans the scalp of dandruff scales. The active ingredients work from the first application to eliminate up to 100% of visible dandruff and its cause. Dercos shampoo restores the balance of the scalp microbiome and soothes and reduces itching. It is suitable for regular anti-dandruff treatment. It prevents the reappearance of dandruff, and the effects are visible up to 6 weeks after the first use. Its effectiveness has been clinically confirmed.