MSM contains sulfur in a form the body can readily use. Sulfur is necessary for the production of collagen, glucosamine and chondroitin, all of which are building blocks of cartilage. Sulfur is necessary for the formation of all connective tissue in the horse's body, including cartilage in joints. Sulfur also works with thiamine, pantothenic acid and biotin to promote metabolism and communication between nerve cells. Sulfur is found abundantly in keratin, a major component of hair, hooves and skin and it's included in some horse skin coat and hoof supplements. Sulfur is necessary in the formation of glutathione, which functions as one of the body's best natural antioxidants.
Feeding rates are 12g a day for first week then reduce to 6g ( teaspoon)