Bain Purete Anti-Pelliculaire is a cellular purifying anti-dandruff bath for oily and sensitive scalps prone to dandruff. Application and massage with Bain Purete Anti-Pelliculaire: Apply after Micro-peeling. Step 1: Apply directly to the scalp. Step 2: Develop the foam and perform the 3 gestures of the Kérastase Massage. Step 3: Rinse abundantly. More information in Access.