Instantly soothe your scalp with the vichy dercos ultra soothing shampoo for dry hair a sulphate free shampoo that works from the first use formulated with a sensirine active complex the dercos ultra soothing shampoo provides immediate scalp relief helping to relieve itchiness and keep the scalp soothed for up to 48 hours a combination of glycerine and panthenol also work within the shampoo to keep hair hydrated soft and shiny for hair that looks as healthy as it feels the fresh and cr