Ducray Kelual DS Intensive Shampoo is a dermatologically tested treatment for severe, persistent dandruff and intense scalp discomfort. Formulated with the patented OXYCALM® complex, it provides 72-hour relief from itching and burning sensations. Its antifungal and keratolytic ingredients eliminate 100% of visible dandruff from the first use and help prevent recurrence for up to 8 weeks. The gentle, non-irritating formula respects the scalp’s natural balance and leaves hair purified, light, and full of volume.