Glucosamine Chondroitin MSM Antioxidants Manufactured in the U.S.A* For Dogs of All Sizes 6 Beneficial Ingredients Including All the Health Benefits of the Perna Mussel No Wheat No Corn No Artificial Ingredients** Delicious. Different Veterinarian Formulated For Use in Dogs Only For All Dogs Quality Seal - NASC Natural Animal Supplement Council Your dog deserves the best pet supplement the world has to offer. That's what's in this package. Every Pet Naturals supplement is naturally formulated with the most pure and potent ingredients available. **No artificial colors, dyes or harmful preservatives. *Manufactured in the USA with imported and domestic ingredients. Why It Works Glucosamine - Supports lubrication of the joints, flexibility and mobility. Perna - Ingredients naturally found in perna enhance the healthy functions of joint and connective tissue. MSM - A source of sulfur, which supports maintenance of connective tissue function. Antioxidants - Support protection of the joints from everyday free radical damage.