BENEFITS Fights Dandruff Repairs Hair Damage Relief from Scaly, Flaky & Itchy Scalp Ingredients Ketoconazole  the key ingredient of this anti dandruff shampoo, is the most effective antifungal agent to curb dandruff and inflammation in the scalp. Zinc Pyrithione  is another key ingredient which is having the feature to kill fungus, bacteria, and microorganisms that can contribute to an itchy, flaky scalp. Directions Of Use Apply Ketoska-Z Shampoo on wet hair. Massage into scalp, leave on for 2-3 minutes and rinse thoroughly with water or as directed by the physician.