If you are interested in more research on this subject check out Dr. Stanley Jacobs, M.D. Director of the DMSO Clinic and Professor of Surgery at Oregon Health Sciences University.
book The Miracle Of MSM . In his
book Dr. Stanley Jacobs lists MSM's most significant actions to be: an analgesic (pain controller), MSM supplements aid in the relief of inflammation, and passes through cellular membranes of the body, including the skin, it dilates blood vessels and increases blood flow, blocks the action of cholinesterase, thereby helping to restore normal bowel activity, MSM dietary supplements reduce muscle spasms, it alters the cross linking process in collagen, therefore reducing scar tissue, and has anti parasitic properties (particularly for giardia), and MSM has an immune normalizing effect, as observed in some autoimmune diseases such as rheumatoid arthritis, lupus, and scleroderma.
One of the essential components in all life forms, sulfur is involved in amino acid production, connective tissue, skin, hair, nails, (in animals, hide and hooves), enzymes, hormones, and immunoglobulins.
lists the following as the most frequent applications of degenerative wear-and-tear arthritis Rheumatoid arthritis, Chronic back pain, Chronic headaches, Muscle pain, Fibromyalgia, Tendonitis and bursitis, Carpal Tunnel Syndrome, TMJ problems, Post-traumatic pain and inflammation, and Heartburn.