Dercos Anti-dandruff shampoo for Normal to Oily hair eliminates up to 100% of visible dandruff on first use* - with Selenium Sulfide. Its efficacy was tested on people exposed to stress, fatigue and urban environment. Cleans hair and helps reduce the appearance of visible flakes from the 1st application. Control dandruff and reduce the recurrence. Soothes to help relieve the sensation of itchiness associated with dandruff. * Consumer test - regular use after 2 weeks - Italy.