Methyl Sulfonyl Methane is an sulfide with a molecular formula of C2H6O2S, which is a necessary substance for human collagen synthesis. MSM is contained in human skin, hair, nails, bones, muscles and various organs. The human body consumes 0.5 mg of MSM per day, and if it is lacking, it will cause health disorders or diseases. Therefore, it is widely used abroad as a health care drug, and it is the main drug to maintain the balance of biological sulfur in the human body.