Dermatologist recommended for fastacting relief from dandruff and seborrheic dermatitis flareups Gentle and clean on your scalp and hair Generous 16 oz bottle Soothing nourishing formula contains 2 Zinc Pyrithione PABA free TEA Lauryl Sulfatefree No seal when in new condition Get instant relief starting with the first use This calming unique formula is easy on your scalp and hair Enjoy soft shiny hair with no more flakes Wash your hair with DHS Zinc Shampoo 34 times a week or as directed by your doctor Use with DHS Regular or Clear Shampoo on the other days so your hair stays healthy For three generations Persn Covey Inc has made quality products with the finest innovations in dermatological care and sun guard Familyowned since 1941 Based in California USA