Dear Doctor: A friend suggested I try MSM crystals for arthritis. What are they, and do they work? If they do, where can I find them? Dear Reader: Methylsulfonylmethane (MSM) is an organic ...

If you purchase an independently reviewed product or service through a link on our website, we may receive an affiliate commission. Learn more about our policies and reviews. MSM, commonly known as ...

Methylsulfonylmethane, or MSM, is an organosulfur compound. Most often used as a protagonistic agent to anti-inflammatory prostaglandin action, MSM is frequently found in compounded creams and other ...