Experiencing scalp dryness? Discover the Vichy Dercos Anti-Dandruff Water To Foam Shampoo To Treat Dandruff. Specifically developed for curly hair types, the cleansing formula rinses away even the most stubborn of debris. n Infused with salicylic acid and piroctone olamine, the shampoo exfoliates the scalp to remove dead skin cells and buildup. Glycerin enhances the formula to soothe the scalp and hydrate strands for shinier, softer-looking curls. The formula is suitable for coloured hair and sensitive scalps.