Purina ONE Adult is nutritionally tailored for cats aged 1-7 years. Developed by Purina"s nutritionists and vets, Purina ONE Actilea Formula contains:Prebiotics proven to promote a balanced gut micro flora.Antioxidants for assisting healthy cell function.Yeast, to help support an adequate immune responseIts triple action helps support your cat"s natural defences.The nutrition your cat needs, with tasty high quality ingredients that will delight her. Proven to reduce tartar build-up by up to 40%* *Purina research.