Vichy Dercos Nutri Protein, 250 ml, Hair Masks for Women, The Vichy Dercos Nutri Protein hair mask is an essential step in your hair care ritual. Give it a moment to regenerate and it will repay you with vitality and beauty. Characteristics: regenerates the hair along its entire length goes deep into the hair fibre hair is soft to the touch Ingredients: no silicones How to use: Wash with shampoo, then apply to damp hair. Leave to act as instructed on the packaging, then rinse thoroughly.