DMSO is a natural solvent extracted from wood pulp.
Highest grade, low odour, min 99.9%* diluted to 70% with distilled water.
* Remaining 0.1 % is mostly water.
Note: undiluted DMSO can be supplied for 10% extra. Undiluted DMSO solidifies in the winter <20 °C and therefore needs to be warmed up before use – immerse bottle in hot water for about 1 hr. Undiluted DMSO dehydrates skin and can cause skin irritation.