MSM, Methylsulfonylmethane, by Solaray is a vital, bioavailable dietary source of sulfur that is found in our living tissues. MSM is an end product of DMSO (Dimethyl Sulfoxide). Because MSM is readily bio-available and easily assimilated by the body, it plays a key role in synthesizing numerous sulfur-containing proteins — proteins that are crucial to the proper functioning of the body. Even more profound is the fact that daily supplements of MSM (the dosage range is usually 500 mg to as much as 5,000 mg or more) often alleviate the pain and discomfort of a variety of health conditions, most notibly for arthritis, tendinitis and joint inflammation. MSM, however also helps treat allergies, gastrointestinal upset, skin problems, parasite infections, and more.