Description Escalate Flex-Aid is a Pelleted joint supplement for all classes of horsesKey ingredients for support of healthy joints5,000 mg. Glucosamine HCl1,000 mg. Methylsulfonylmethane (MSM)250 mg. Chondroitin Sulfate30 mg. Grape Seed Extract20 mg. Hyaluronic AcidFormulated with calcium ascorbate and grape seed extract (antioxidants)Made with alfalfa for enhanced palatabilityFormulated to support healthy joint function 45 day supply