DMSO has gained popularity so many manufactures have started making it. Some of them lack any kind of oversight and quality control. Often times these manufactures cut corners and add ingredients you do not want in DMSO.
We recommend only buying pure 99.99% DMSO liquid in glass bottles only; avoiding plastic bottles. Plastic has been shown to leak in to the contents that have been store in it. Also you want your DMSO stored in environmentally controlled warehouses.
At this time we recommend getting your DMSO from Future Health Today - the direct link to FHT's DMSO is http://www.futurehealthtoday.com/dmso-pharma-grade
If you need more information on DMSO check out sites such as http://www.CureZone.com and http://www.HealthClinic.com , but make sure you bookmark FHT's DMSO page above when you're ready to buy DMSO online.