Liquid supplement has 33% more HA than competing products, in a readily absorbed liquid. HA, a major element of both cartilage and synovial fluid, is associated with joint lubrication and flexibility. High molecular weight HA, the only kind AniMed uses, is absorbed from the intestines and localizes in the joints. Effortless HA offers an effortless way to support horse s normal joint health. Each oz contains 300 mg hyaluronan, ascorbic acid, deionized water, glycerine, propylene glycol, vitamin E oil and yucca schidigera.