Certain factors determine whether or not your dog will experience joint problems; weight, breed, and general shape and size contribute greatly to this common problem. OxyNu Canine Joint Health for extra-large dogs (75+ lbs) was specially formulated to provide the essential minerals to ensure your dog’s joint health. With all-natural ingredients like Oxygen, Calcium, and Magnesium, your dog can enjoy all the benefits of total nutritional health without preservatives and fillers. OxyNu Canine Joint Health will keep your best friend running, climbing and playing like they did when you first brought them home.