Salicylic acid formula is effective at removing heavy flakes and scaling Relieves bothersome itching flaking and scaling with an extra- strength formula that helps to eliminate recurrence of these moderate symptoms 2-in -1 shampoo plus conditioner formula is enriched with provitamin B5 to provide the body shine and manageability you expect from a separate conditioner For best results use at least 2x per week or as directed by a physician