Purina Pro Plan Liveclear Weight Management Formula Chicken, Make being a pet parent more enjoyable when you feed your cat Purina Pro Plan LIVECLEAR Adult Weight Management Formula dry cat food. The first and only line with the power to reduce cat allergens, Purina Pro Plan LIVECLEAR cat food significantly reduces the major allergen in cat hair and dander. This premium cat food formula is backed by over a decade of research and simply and safely neutralizes Fel D1, a common allergen in cat saliva, with a key protein from eggs. It's shown to reduce the allergens in cat hair and dander by an average of 47 percent starting in the third week of daily feeding.