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 every 15 days for 6 weeks. The maintenance treatment can be interrupted earlier than 6 weeks if the problem has been resolved.