HAIRBALL for cats is a state-of-the-art supplement designed for state-of-the-art cats to support optimal skin and hair health, including tone, elasticity, and follicle health. This formula contains no herbals or mineral oil, both of which can disrupt normal bodily processes (like digestion and hydration) in cats. Instead, HAIRBALL for cats includes zinc, involved in the production of collagen and essential to fatty acid metabolism, and omega 3 and 6 fatty acids to support skin hydration and GI tract health. Added cranberry supports urinary tract health, so your felines insides and outsides will always be the cat’s meow.