Grizzly Pet Products' Joint Aid 4 Dogs Active Dog Formula is formulated for dogs that lead active lifestyles. It comes with higher inclusions of the active ingredients glucosamine, chondroitin and MSM, supported by special ingredients such as curcumin, glutamine and Oatinol, according to the company. It is available in 10-oz. and 2-lb. packs that include a dosage scoop.