dandruff seborrheic dermatitis skin care products facial cleanser dry skin scalp DANDRUFF How does CAPEX work?  Capex dandruff Shampoo is a unique corticosteroid treatment in a shampoo-delivery system created to effectively treat dandruff associated with Seborrheic Dermatitis. Seborrheic Dermatitis - Overview What is scalp seborrheic dermatitis? Itching, flaking and scaling skin above the hairline can be quite common. In its mildest form it is called dandruff. But when there is an annoying itch, extreme flaking along with inflamed greasy, scaly-looking skin above the frontal hairline or around the ears, it could be scalp seborrheic dermatitis SSD. To get better lather, the hair should be totally wet before applying Capex Shampoo. Once applied to the scalp, this is worked into a lather and let to stand for approximately 5 minutes, after which it should be rinsed off completely. It is recommended that the hair and scalp be rinsed twice with water.