Dandruff and Seborrheic Dermatitis: Use of Medicated Shampoos

Dandruff is one of the most common scalp disorders and one of the most frequent conditions for which consumers seek and purchase over-the-counter drugs. For the twelve months ending in May 2014, sales in the United States of anti-dandruff products totaled $582.2 million, increasing about 1% per year. However, scientific attention has only recently been focused on the causes and treatment of dandruff.1