MSM is believed to have anti-inflammatory properties, which can help reduce joint pain and swelling in horses. It is also thought to promote the production of collagen and other connective tissue, which can help improve the health of joints and other structures in the horse’s body. In addition to its joint health benefits, MSM is also believed to have other health benefits for horses. It is thought to have antioxidant properties, which can help protect the horse’s cells from damage caused by free radicals. It may also help support the horse’s immune system, promoting overall health and wellness.