PURINA ONE Coat & Hairball with IMMUNE DEFENCE PLUS+ has been specially formulated with beta glucans, vitamin C & E and omega 3 & 6 fatty acids. Working in parallel this blend helps support first line immune defence for your cat: Vitamin E & C are natural antioxidants that help prevent cell damageassociated with aging and poor health Omega 3 & 6 fatty acids helps keep skin healthy to maintain a strong barrierto the external environment Beta glucans to help support optimal immune responsePURINA ONE Adult Coat & Hairball Dry Cat Food with Chicken contains a blend of natural plant fibres to help minimise hairballs and omega 3 & 6 fatty acids to give your cat a radiant coat and help nourish and protect their skin