Davines naturaltech purifying gel gel rich in active principles that contrast dandruff problems the combination of active principles with antifungal and antibacterial action reduces exfoliation and keeps the scalp clean and healthy how to use after using purifying shampoo apply 10 gr of product to the scalp in areas affected by dandruff massaging in gently leave on for 10 minutes rinse off thoroughly intensive treatment once a week for 3 weeks maximum maintenance treatment once eve