Methylsulfonylmethane (MSM) is a chemical found in green plants, animals, and humans. It can also be made in a laboratory.
People take MSM by mouth and apply it to the skin for chronic pain, osteoarthritis, joint inflammation, rheumatoid arthritis, osteoporosis, inflammation around the joints (bursitis), tendinitis, swelling around the tendons (tenosynovitis), musculoskeletal pain, muscle cramps, hardened skin condition called scleroderma, scar tissue, stretch marks, hair loss, wrinkles, protection against sun/wind burn, eye inflammation, oral hygiene, gum disease, wounds, cuts, and abrasions/accelerated wound healing.
