Dimethyl Sulfoxide (DMSO) and Methylsulfonylmethane (MSM) for Osteoarthritis

https://www.nccih.nih.gov/health/dimethyl-sulfoxide-dmso-and-methylsulfonylmethane-msm-for-osteoarthritis?nav=govd Dimethyl sulfoxide (DMSO) and methylsulfonylmethane (MSM) are two chemically related substances that have been studied for osteoarthritis. DMSO is used topically (applied to the skin). MSM is sold as a dietary supplement, either alone or in combination with other ingredients such as glucosamine.