DMSO gel is made from dimethyl sulfoxide, a solvent derived from wood pulp and processed into a 90% concentration by volume within the gel base. The formula is pyrogen free and acetone free, and it is intended for topical use on the skin of horses and dogs. Handlers are advised to wear gloves during application since DMSO penetrates skin quickly and can carry other substances along with it. The product should be stored in a cool, dark location, as it can crystallize at cooler room temperatures and returns to its original consistency once warmed. It is intended for external use only and is not formulated for human use. Each container is ready for direct application to the skin without additional mixing or assembly.