From puppies to seniors, ark naturals sea mobility joint rescue soft chew beef squares helps keep your dog agile, mobile and flexible. Excellent for performance, service or hunting dogs (and okay for cats, too), ark naturals gives your four-legged friends 500 mg. Of glucosamine per 4 soft chew squares. Veterinarian-formulated, our beef squares no hormones or antibiotics, no artificial flavors and no artificial preservatives. Includes one 9 oz. Bag of ark naturals sea mobility joint rescue soft chew chicken squares. At ark naturals, for the past two decades our mission has always been to offer the most complete, scientifically formulated and healthful products for companion animals. Ark’s product range includes remedy, wellness and lifestyle products.