The Scalp Advanced Anti-Oiliness 2in1 Shampoo & Mask Deep Purifier Clay from L'Oréal Professionnel Paris was specially developed for oily scalp. The scalp is cleaned intensively. As early as the first application, residues and sebum are reduced by 78% on the scalp. * * Instrumental test: Dermo-Purifier Shampoo+Clay. Product series for the liberation of the scalp of residues, sebum, dirt, oil and sweat enriched with cleaning active ingredients together with hairdressers develops compatibility tested by dermatologists. Foam gently with the softest part of the fingertip without massaging too much (u .