MSM, full name Methyl-Sulfonyl Methane, is an organosulphur compound that can be found naturally in humans, animals and plants. MSM is used as a sulphur donor to make other chemicals within the body and is often combined with Glucosamine and Chondroitin. Bulk MSM (Methyl-Sulfonyl Methane) is comprised of 100% MSM powder.
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