DS Anti-Pollen Pre Wash contains the innovative conditioning polymer N-Durhancea (INCI: Polyacrylamidopropyltrimonium Chloride), which activates during hair wash. It creates a hydrophobic, i.e., water-repellent, protective film on the hair surface that prevents pollen and dust, as well as air pollution from sticking to the hair. Use the Pre Wash treatment only every sixth wash, as the product's effectiveness increases with each subsequent wash.Use:DS Anti-Pollen Pre Wash contains the innovative conditioning polymer N-Durhancea (INCI: Polyacrylamidopropyltrimonium Chloride), which activates during hair wash. It creates a hydrophobic, i.e., water-repellent, protective film on the hair surface that prevents pollen and dust, as well as air pollution from sticking to the hair. Use the Pre Wash treatment only every sixth wash, as the product's effectiveness increases with each subsequent wash. Sim Sensitive DS Anti-pollen Pre Wash 200 ml