Science Diet® Hairball Control Senior 7+ is formulated specifically to meet the special requirements of older cats. It includes special, natural vegetable fibres that help bring hairball problems under control. Science Diet's innovative fibre technology helps control and avoid the formation of hairballs by moving hair through your cat's system. Science Diet® Hairball Control Senior 7+ is specially formulated as a complete and balanced daily nutrition for older cats, providing essential nutrients to nourish your cat's skin and coat.