Hairball Formula Flavored chews. A tasty unique formula designed speciÿcally for cats who are prone to hairball problems. Ingredients per 1 chew (1.5g): Biotin 0.013 mg, Zinc 0.2 mg, Omega 3 fatty acids 75 mg, Omega 6 fatty acids 15 mg: Brew-ers dried yeast, Chicken liver ˜avor, Glycerin, safflower oil, Flaxseed oil, Whey, Lecithin, Psyllium powder, Cranberry extract, Maltodextrins, Sodium alginate, Calcium sulfate, Zinc proteinate, Biotin, in a preservative base of propionic acid and Mixed tocopherols. Give 2 - 4 chews once a day for 5 - 7 days, or until results occur. Adjust to 1 - 3 chews per week as a maintenance dose or according to your pets needs. Preventive care: Give 1 - 2 chews per week.