When your dog needs help with their joints, give them them Norton's! Our Original Formula Joint Aid is a powerful joint supplement for dogs available in super-easy tablet form. Each tablet contains a careful blend of the 7 proven active ingredients required to see your dog right ...When your dog needs help with their joints, give them them Norton's! Our Original Formula Joint Aid is a powerful joint supplement for dogs available in super-easy tablet form. Each tablet contains a careful blend of the 7 proven active ingredients required to see your dog right; Green Lipped Mussel, Hyaluronic Acid, high-grade Glucosamine for dogs, natural Chondroitin, Manganese, Vitamin C & Vitamin E.