Derived only from wild Alaskan salmon, this all-natural oil retains its balanced blend of valuable fatty acids and is further protected by adding all-natural rosemary extract. Contains the inherent antioxidants and traces of vitamins that naturally occur in salmon. Will not interfere with your dog’s intake of vitamins from other sources. You’ll notice the difference in your dog’s coat and energy—not to mention appetite! 8 oz. bottle or 16 oz. bottle.