Quick view Tarsum Tarsum Psoriasis Shampoo - Coal Tar Shampoo And Conditioner For Scalp Psoriasis, Seborrheic Dermatitis, Severe Dandruff, & Eczema - Exfoliating Relief For Flaky, Itchy Scalp, Plaque, & Redness (4 Oz) MSRP: Was: Now: $20.71