HSD Adult Cat Hairball Control 3.5lbsHill's Science Diet Adult Cat Hairball Control 3. 5lbs No one likes hairballs especially your cat. That's why Hill's Science Diet Hairball Control Adult dry cat food provides nutrition to help avoid hairball formation for grown cats. This pet food made with natural ingredients nourishes your cat's skin with omega 3 and omega 6 fatty acids, while the high quality protein supports the maintenance of lean muscles. The natural fibers are easy to digest