Denorex Dandruff Control Extra Strength Shampoo + Conditioner Denorex Dandruff Control Extra Strength Shampoo + Conditioner 10 oz Bottle This 10 fl oz Denorex Dandruff Control Shampoo + Conditioner is a powerful anti-dandruff shampoo containing a nourishing conditioner. This shampoo features salicylic acid to remove scalp build up as well as a special blend of vitamins and nutrients to ease irritation and itching. Denorex shampoo is gentle enough for everyday use and helps keep dandruff seborrheic dermatitis and psoriasis symptoms from coming back so you get healthy-looking hair.