National Nutrition Professional Supplement Reviews with Leading Health Expert Karlene Karst.br Karlene gives us a 3-minute professional supplement review on DMSO and its ability to help with pain and swelling in the joints.br To learn more about DMSO and how to supplement with it: Dimethyl sulfoxide (DMSO) is an organic sulfur-containing molecule that can dissolve polar and non-polar molecules. This means that DMSO can dissolve both fat-based and water-based substances, making it easily absorbable in the human body. It is commonly used to reduce pain and speed healing in the body...