Symbiose Bain Pureté Anti-Pelliculaire by Kérastase is a silicone and sulfate free purifying anti-dandruff cellular shampoo for oily sensitive scalp prone to dandruff, containing piroctone olamine that acts on all the causes of dandruff and salicylic acid, for breathable scalp. A caring yet breathable foaming formula to remove dandruff while preventing oil build up. Exfoliates instantly and removes visible dandruff, calms scalp sensitivity, balances oil levels?, and boosts hair vitality?. Up to 7 weeks of anti-dandruff efficacy(1) The Bain Pureté Anti-Pelliculair like all Kérastase bain has this very luxury and sensorial texture, transparent liquid formula with natural yellow undertones combined with a luxurious fine fragrance. (1)Clinical test results on 34 people during 4 weeks, 3 applications per week