AniMed™ PureFlex Joint Complex 5 lbs. Joint SupplementRecommended for all classes of horses facing day to day joint stress from athletic training, performance, and competition. Ideal for the maintenance of normal, healthy equine joints. Superior powder blend of pure ingredients for pure nutritional joint support Recommended for horses with osteoarthritis, aging horses, and all horses facing the day to day joint stress of athletic training, performance, and competition Each oz. contains: 16,500 mg MSM;