Recommended by dermatologists.ShampooPerson CoveyActive Ingredients:Solubilized Coal Tar Extract (0.5% Coal Tar) 2.9%Wet hair thoroughly; apply a liberal quantity of DHS Tar Shampoo and massage into a lather. Allow lather to remain on scalp for several minutes. Rinse thoroughly and repeat application. For best results use at least twice a week or as directed by a physician.Inactive Ingredients:Purified Water; TEA Lauryl Sulfate; Sodium Chloride; PEG-8 Distearate; Cocamide DEA; Cocamide MEA; Citric AcidUses:Controls the symptoms of dandruff seborrheic dermatitis and psoriasis. Recommended by physicians for the control of scalp itching and flaking symptomatic of chronic scalp psoriasis seborrhea and dandruff.For external use only. Avoid contact with eyes. If contact occurs rinse eyes thoroughly with water. If condition worsens or does not improve after regular use of the product as directed consult a physician. Use caution in exposing skin to sunlight after applying this product. It may increase your tendency to sunburn for up to 24 hours after application. Do not use for prolonged periods without consulting a physician. Do not use this product with other forms of psoriasis therapy such as ultraviolet radiation or prescription drugs unless directed to do so by a physician. If condition covers a large portion of the body consult your physician before using this product. In rare instances discoloration of gray blond bleached or tinted hair may occur. Store away from direct sunlight. Keep this and all drugs out of the reach of children. In case of accidental ingestion seek professional assistance or contact a Poison Control Center immediately.