CeraVe enters the hair care industry with an anti-dandruff shampoo and conditioner that targets ceramide deficiency. The brand tested the products on over 450 scalps from various ethnicities, genders and ages to cater to all demographics. The dermatologist-recommended skin care brand says the root cause of dandruff is ceramide deficiency, and that its new solution eliminates up to 100% of visible flakes without disrupting the scalp barrier.