DMSO (Dimethyl sulfoxide) is a natural supplement usually derived from decomposing wood pulp. DMSO is popular because it is a solvent that mixes with other minerals. This is helpful because it allows DMSO to be used as a delivery agent for other medicines by penetrating human cells quickly while carrying other medically beneficial minerals with it. Many doctors use DMSO to administer drug treatments because it increases the speed and efficiency in which a treatment is absorbed by the necessary cells in the human body. DMSO use in the United States must be prescribed by a doctor since its FDA uses are very limited at this time.