Helps increase dog s range of motion by helping maintain healthy bone, connective tissue, and joint structure as well as function. Veterinarian recommended. Peanut butter flavored wafers contain no wheat, soy or corn. Each wafer contains 500 mg glucosamine HCl, 500 mg MSM, 250 mg yucca extract, 120 mg chondroitin sulfate, 50 mg ascorbic acid (vitamin C) and 10 mg sodium hyaluronate (HA). Also contains coconut oil for additional health benefits, helps give hair a shiny is good for skin and digestion, may help expel internal parasites and may guard against giardia.