Sulfur is in the hair, skin, and nails. Many amino acids, the building blocks of protein, have sulfur as a component. Many B-complex vitamins interact with or contain sulfur. Sulfur is needed for insulin production. One current use of MSM is for joint problems, as sulfur is found in and near osseous structures.
Sulfur supports healthy muscles, tendons, and ligaments.
MSM normalizes pressure inside cells and removes toxins. Oregon Health Sciences University has conducted arthritis studies with mice. The other non-MSM mice had cartilaginous degeneration. The university has used MSM on over 12,000 patents. One researcher claims MSM is about as safe as water.