What makes OptiMSM superior to other kinds of MSM?
OptiMSM is the original MSM available in the United States patented as safe for human biological use. If you don’t see the OptiMSM logo, you can’t be certain you are getting 99.9% pure, safe, and effective OptiMSM. Look for the patented number and ask for certificate of analysis. OptiMSM is manufactured in the United States according to strict manufacturing standards. You can be confident that the product you are taking was made with pure, food-quality MSM. MSM used in other products may contain impurities or contaminants of any kind. 33.