For Animals-K-9 Glucosamine by Liquid Health 8 oz Liquid 25 of all dogs will develop arthritis or joint ailments of some kind. K-9 Glucosamine contains essential nutrients that have been shown in clinical studies to prevent and dramatically improve the condition of animals suffering from joint ailments. For younger dogs Glucosamine and Chondroitin aid in the prevention of arthritis while MSM promotes general good health. Supplements in a liquid form are shown to absorb more quickly efficiently than tablets offering faster results. Superior Value - Lasts up to 2x longer than our original formula same great price Has 62 more glucosamine Has 50 more chondroitin Contains Opti-MSM o Ultra-purified and distilled to provide the purest form of sulfur needed for structural integrity of joint cartilage. o Standard MSM is tested for lead arsenic cadmium and mercury at 10ppm. OptiMSM is tested at 1 000 to 10 000 times greater sensitivity to insure less than 0.01 ppm to .001 of these contaminants.