Our brand of DMSO is the safest and most pure DMSO on the market. It made in USA. What makes our DMSO such a high quality? While there are several methods of extracting DMSO. We use the most safe, natural and organic way to extract it and use a little chemical as possible. Name of the process is Organosolv. Organosolv process mainly using hot water and special organig solution to extract DMSO, while other process use a lot of different chemicals. The Organosolv process is a process for conversion of wood into wood pulp, which consists of almost pure cellulose fibers, the main component of paper. The Organosolv process entails treatment of wood chips mainly with a hot mixture of water and a pulping technique that uses an organic solvent.