Dupierre hair color is rich in nutrients, including almond, castor and oleic acid vegetable oils, which quickly penetrate and deeply nourish the hair cuticles, bringing silky smoothness to your hair. Keratin and hydrolyzed wheat and barley protein minimizes the damage caused by the hair coloring process with deep nutrition. Vitamins B5 and C also make hair shiny and retain moisture and prevent their dryness and brittleness after dyeing.