MSM or methylsulfonylmethane is a natural, best absorbable organic sulfur compound. It supports healthy joint function with amazing anti-inflammatory properties to help relieve your horse of all kinds of inflammation, swelling and pain. Suitable after injuries and operations. Recommended for: chronic myalgia (muscle pain), pain in the hip joint, lumbar part of the spine, after injuries and operations, arthritis, inflammation of the joints, inflammation of the joint head, inflammation of the joint of the hoof, diseases of the index finger, cracks in the hoof capsule.