Dimethyl sulfoxide is a natural product from trees that relieves muscle and joint pain, treats bladder inflammation and protects healthy cells from cancer and chemotherapy drugs. 

DMSO has the unusual ability to depress the freezing point of water dramatically, while maintaining viability with many cell and tissue types. It is a sulfur-containing organic compound that is derived from MSM, and can be used internally or externally. 

DMSO is a potent antioxidant, scavenging the highly reactive molecules that contribute to disease and aging, known as free radicals. It  is used as a topical analgesic to block pain signals.