Myristol is recommended to comprehensively promote, support and maintain joint health in young, active canine athletes, as well as in older dogs. Active Ingredients per tablet: Cetyl Myristoleate Fatty Acid Complex 225 mg Glucosamine HCl 225 mg MethylSulfonylMethane (MSM) 75 mg Hydrolyzed Collagen 225 mg Ascorbic Acid (Vitamin C) 50 mg Zinc (Zn) 1.0 mg Manganese (Mn) 0.5 mg Copper (Cu) 0.2 mg