MSM for Strength Sulfur is in every cell in your body. In fact, approximately ten percent of your body's mineral content is sulfur. It's especially important in the formation of healthy cartilage, muscles, skin, and hair. As your body ages, however, levels of sulfur drop and result in fatigue and lack of strength. But this doesn't have to be you! Now you can actually help maintain joint health with Botanic Choice's MSM. This saturated source of natural sulfur is essential for cartilage and can help give you greater strength and healthier joints. What makes our MSM uniquely powerful is that we use a special patented form called OptiMSM®. OptiMSM® is a special form of MSM, precisely manufactured in the USA. This means you get high quality with every dose. And, we use generous 500 mg. capsules, not a lesser amount you might find elsewhere.