The Scalp Advanced Anti-Discomfort Dermo-Regulator Shampoo from L'Oréal Professionnel Paris was specially developed to calm down sensitive scalp. Already after the first application, the hair is calmed down & +49% more hydrated*. *Instrumental test. Product range for soothing sensitive scalps Enriched with skin-soothing and skin-regulating active ingredients Developed together with hairdressers Tolerability tested by dermatologists Application: Apply evenly to wet scalp and hair. Using the softest part of your fingertip, lather gently until you get a light foam. Then rinse thoroughly.