Ketomac Dandruff Treatment Shampoo is used for the Prevention and Treatment of Dandruff. It treats Flaking, Scaling, Itching, Dandruff and also helps to relieve inflammation due to Dandruff. DIRECTIONS FOR USE : Wet hair and scalp thoroughly. Apply a small amount of Ketomac Shampoo to your scalp and massage into a lather. Leave it on for 5 to 10 minutes and then rinse your scalp thoroughly. FOR EXTERNAL USE ONLY.