Flex Kitty Glucosamine, Chondroitin, & MSM for Cats; with Omega 3 Fatty Acids; Hip and Joint Comfort STRONG: Looking for an Advanced Formula? This is it. 200 mg of GLUCOSAMINE, 100 mg of CHONDROITIN, and 100 mg of MSM. Formulation contains the added health benefits of OMEGA 3 FATTY ACIDS, VITAMIN C, and MANGANESE. Just what your cats doctor ordered. Promotes flexibility of joints to increase everyday comfort. Helpful for cats with joint issues, and support for cats with healthy joints.EFFECTIVE: It works! Our customers say their cats have greater mobility, less pain, and less stiffness. Older cats get some spring in their step again. Promotes flexibility of joints to increase everyday comfort. Helpful for cats with joint issues, and support for cats with healthy joints. COMFORT: More comfort for your cat; more peace of mind for you. YUMMY: Cats give the taste two-paws-up! An effective product is of no use if your cat won't eat it. Our company feline taste-testers and our four-legged customers keep asking for more. QUALITY: Manufactured in the U.S.A in a NASC (National Animal Supplement Council) certified facility.