NWC Naturals uses OptiMSM, because it is the world’s purest MSM (Methyl Sulfonyl Methane) and is made in the USA.  Every batch of OptiMSM is distilled for purity and undergoes the most rigorous analytical testing available, guaranteeing unsurpassed quality. OptiMSM is the only brand of MSM with published, peer-reviewed safety data. OptiMSM's guarantee is the absence of harmful metal and biological contaminants, and is always guaranteed 99.9% pure methylsulfonylmethane.

• Ultra-Pure MSM supports normal inflammatory response
• Healthy skin, nails, and hair
• Healthy joints and muscles
• For occasional muscle pain, joint pain, and healthy aging
• Increases flexibility & mobility

Ingredients:
99.9% Ultra-Pure MSM (Methylsulfonylmethane)