Serioxil Advanced Purifying Body shampoo from L'Oréal Professionnel Paris. | It's the first professional scalp treatment. ultra-concentrated with dermatologically active ingredients to densify fine hair. Proven effectiveness, in just 6 weeks, hair becomes thicker. Suitable for hair with loss of density. Gently purifies hair, helping to provide una A sensation of density, as well as shine and volume. Formulated with magnesium salt that provides texture to the tingling fiber. Dermatologically tested.