Cosequin Maximum Strength is the number one veterinarian-recommended joint health supplement brand for dogs, formulated with the three evidence-backed ingredients for canine joint support: Glucosamine HCl, Chondroitin Sulfate, and MSM. Glucosamine is a natural compound that supports cartilage synthesis and joint fluid production. Chondroitin works synergistically to protect existing cartilage from breakdown. MSM provides methylsulfonylmethane, a sulfur compound that supports connective tissue and may reduce joint discomfort. The formula carries the National Animal Supplement Council (NASC) quality seal, confirming manufacturing standards and ingredient verification. Chewable tablets are palatable to most dogs when added to food. Most owners report noticeable improvement in mobility and activity level after 4-6 weeks of consistent daily supplementation. For large breed dogs, senior dogs, working dogs, or any dog showing signs of joint stiffness, Cosequin Maximum Strength is the veterinarian-endorsed choice.