Blue cap shampoo contains Zinc pyrithione and Menthol as main active ingredients.Role of active ingredients:Zinc pyrithione treats and prevents itching flaking and scaling of the scalp caused by dandruff or seborrhea (oily crusting or scaling skin). Zinc pyrithione is an antiseborrheic and works by slowing the production of skin cells which helps to reduce flakiness.Menthol controls the secretion of excess oil and prevents clogging of pores and control dandruff.Blue cap shampoo is used as anti dandruff.Use under medical supervision.