Methylsulfonylmethane, also called dimethylsulfon. (Dietary supplement) Ingredients: 100% methylsulfonylmethane Recommended intake: Start with 1,500 mg MSM in the first week. After the first week the dose can be increased up to 4g. Note: The recommended daily intake should not be exceeded. Dietary supplements are no substitute for a balanced and varied diet and a healthy lifestyle. Keep out of reach of small children.