Vichy Dercos Nutrients Dry-Shampoo Detox  is a dry purifying shampoo suitable for hair and scalp that tend to get oily quickly. Vichy Dercos Nutrients Dry-Shampoo Detox reduces the oily appearance of the scalp and purifies the hair. Vichy Dercos Nutrients Dry-Shampoo Detox is suitable for women exposed to daily pollution which affects the production of sebum on the scalp.