pure, natural source of msm,guaranteed non-toxic and safe for long term,fast release one-a-day tablets,taste-free coated tabletsnature\'s best msm is a pure form of this sulphur containing compound and is safe to take long term. unlike other msm products our supplement provides a full 1000mg of msm in each tablet, making it one of the most potent products available.msm is a naturally occurring sulphur compound found in small amounts in many foods, including milk. many nutritionists believe that modern day diets are low in sulphur and therefore recommend a msm supplement. msm is one of the major building blocks of glycosaminoglycans, a key constituent of bones, teeth and collagen and this is why it is often recommended as a perfect partner to glucosamine. the organic sulphur compound in msm appears to have other important properties too, one of which is that it is required for the manufacture of many proteins including those found in hair, skin and nails.