- Joint Support
- Hair, Skin, Nails Support
Doctor's Best MSM supplies pure crystalline MSM (methylsulfonylmethane) with American-manufactured OptiMSM. MSM is a naturally-occurring source of organic sulfur that is easily absorbed and used by the body. Sulfur supports collagen production and is a building block of keratin, an essential protein for improving skin, hair and nails. MSM also supports your joint health and joint function, as well as helps protect cartilage.* Doctor's Best uses OptiMSM, a premium trademarked form of MSM, made in the USA and certified for quality and consistency.
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