I wish to know the makeup of DMSO, since I hav many allergic reaction to chemicals, is this natural, and Since I can take natural plants better than pain pills, became interested. I was in emergency once when my dr. Forgot about my allergies and tried a different blood pressure medicine , thank god it was resolved. But I have much arthritis, and my feet hurt, joints. Etc. am 75 yrs old. Don t smoke or drink .sam interested in using it on skin. Feel that will spare my organs, but have heard that it may affect your liver? Thank you.