MSM Plus 180c is available by Progressive Labs.

One of the most important raw materials for building healthy new cells is useable organic sulfur known as methyl sulfonyl methane (MSM). Since sulfur is a component of all cells, it is essential that the body have a plentiful supply of this mineral in its useable form. When MSM is taken in combination with Vitamin C, new cells are more pliable and permeable, allowing fluids to pass through the tissue more easily.

One capsule three to six times daily.

1 Capsule contains:
Vitamin C (as magnesium ascorbate)...100mg
Magnesium (as magnesium ascorbate)...7mg
MSM (Methyl Sulfonyl Methane)...800mg

OTHER INGREDIENTS:  vegetable stearate, gelatin