The GlycoFlex Joint Support Stages system has been trusted and recommended by veterinarians for over 30 years. All VetriScience products are veterinarian formulated and approved by our veterinary review board.;Our soft chews are naturally flavored with real chicken liver and formulated specifically for cats.;GlycoFlex 2 includes clinically proven ingredients to build cartilage, support the synovial fluid in the joints and manage irritating inflammation.;For cats showing signs of joint discomfort and loss of mobility.;VetriScience products are manufactured in the U.S.A