Vichy Dercos Detox Purifying Shampoo is a purifying shampoo for hair and scalp which tend to get oily quickly. Its formula, combining detox spirulina and purifying charcoal with a mild plant-based cleansing base, refreshes the scalp, cleanses up pollution particles and guarantees light hair. Without silicone, this shampoo is perfectly recommended for women exposed to daily pollution, which affects the production of sebum. It can be used several times a week. Spirulina belongs to the family of blue-green algae, rich in proteins, vitamins, minerals and antioxidants that help protect cells from aggression.