Glucosamine Formula is a nutritional supplement for dogs who are older, who have joint pain or who are genetically disposed to hip displasia or bone degeneration. The supplement formula consists of Glucosamine HCL & Chondroitin Sulfate (derived from shark cartilage), Omega 3 & 6 Fatty Acids, Rape Seed, Vitamin E and Selenium delivered via addition to a chopped rawhide chew stick. Each stick contains a specific dosage of supplement. Directions are included for the correct dosage per weight of dog.