Eukanuba Hairball Relief Formula is formulated to reduce the discomfort of hairballs in adult cats. It provides Eukanuba's unique 2-way relief. First, it includes a combination of omega-6 and omega-3 fatty acids, which promotes healthy skin and coat. And second, the unique Eukanuba Fiber ScienceT Hairball Relief System helps hair gently pass through the digestive system to avoid hair buildup. Another benefit is the Eukanuba Dental Defense System, which is clinically proven to help reduce tartar build-up by up to 45%. The proprietary technology used in Eukanuba Dental Defense System helps to prevent tartar build-up both during and after meals.