- Customer Reviews (0)
This product is MSM imported from China and is certified to be 99.9% pure or better. It is purified using the double-crystallization method rather than the distillation method used by our US-made OptiMSM. Distillation is considered to be a superior method, thus why OptiMSM is priced significantly higher. Although this product does come from China, we don't have any reservations recommending it for those on a budget. And just as in our brand-name products, there are no fillers or additives in this product. It is about the consistency of sugar.