Recommended to support joint function and flexibility, and help strengthen joint cartilage in dogs. Active ingredients per soft chew: • Glucosamine HCl, 450 mg • MSM, 400 mg • Creatine Monohydrate, 250 mg • Perna Canaliculus 150 mg • Proprietary blend of citrus bioflavonoids, calcium phosphate, manganese sulfate, ascorbic acid (vitamin C), zinc sulfate, alpha lipoic acid, and grape seed extract, 132 mg • EPA, 9 mg • DHA, 6 mg • Selenium, 10 mcg • Alpha Tocopheryl Acetate (Vitamin E), 25 IU