MSM, or methylsulfonylmethane, is a naturally occurring compound found in plants, animals, and humans. It is often used as a dietary supplement for its potential health benefits, including reducing inflammation and pain, particularly in conditions like osteoarthritis. MSM is believed to support joint health and improve overall mobility. In addition to its anti-inflammatory properties, MSM is also thought to promote skin health and may aid in the treatment of conditions like eczema and psoriasis. It is commonly available in powder or capsule form and is often included in various health and beauty products for its potential benefits.