Our OptiMSM in flake form is 99.9% pure and made in the US. Our one-pound plastic containers are sized so that you get a full pound of MSM. Orders of 5 pounds or more of bulk MSM will be in shipped in plastic bags with a heat seal across the open end to keep it from bursting open during shipment. We add nothing to our MSM. Shelf-life of the OptiMSM® is certified to be 5 years from the date of manufacture which is just a few months before we get it into our stock. MSM should be stored in a cool, but not cold, dry area, such as on a kitchen shelf.

Lignisul® MSM, which we used to carry, is no longer manufactured and is not available.

OptiMSM® is manufactured in Washington by Bergstrom Nutrition (formerly Cardinal Nutrition) at a facility that Bergstrom owns and is dedicated only for making MSM. Since theirs is a closed system, things like temperature and humidity are more controlled and theirs is a more consistent product from lot to lot. Their plant is NNFA GMP certified. They also obtain their DMSO from any number of countries. OptiMSM® is also certified as pure and free of contaminants and heavy metals. Bergstrom does pay royalties to the MSM patent holder, MSM Investments Company, LLC., but is not the patent holder itself. Dr. Stanley Jacob, one of the authors of The Miracle of MSM – The Natural Solution for Pain, has given his endorsement to the OptiMSM® brand.

Our OptiMSM® is made to GMP standards (Good Manufacturing Practices) and is a fine product. We have no reservations about providing it to you.

To get a bit more into the details of the DMSO raw material that Bergstrom uses to make MSM, the source used to be lignan-based (derived from softwood trees), but that is no longer the case. The entire industry has moved to chemically-generated DMSO. This means that while it used to be true that MSM had some ties to a natural base in the past, it is no longer being made that way. Others may claim that their MSM is lignan-based, but they are either misrepresenting their product or they are mis-informed as to the way their MSM is made now. However, there is absolutely no chemical difference between how MSM was made in the past and how it is made now. The only difference is that the carbon in it is from an older source than the carbon that used to come from softwood trees.