Vetoquinol Flexidan Advanced Chews with UCII for Dogs & Cats is an innovative supplement that supports healthy joints and flexibility. These delicious chews contain Omega-3 fatty acids to help relieve inflammation and soothe aching joints, along with vitamin E, a well-known antioxidant and free radical scavenger to help prevent the breakdown of cartilage. Flexidan Advanced also features UCII, an undenatured type II collagen derived from chicken sternum. Produced using a patented, low-temperature manufacturing process that preserves its structural and functional integrity, UCII provides optimal joint support for pets.