MSM is comprised of 34% bio-available sulfur, making it the richest source of organic sulfur available.
Sulfur is critical in the formation of collagen and glucosamine - which are vital components for healthy bones, joints, ligaments and tendons.ULTRA PURE. A great addition to any joint supplement.
MSM Powder Ultra Pure by jkmerritt from Efland, NC06/10/2012
I've used this product for many years as a supplement, but I purchased it in smaller quantities from another online retailer. Now that I have three dogs on the product, I realized that I could definitely save money by purchasing the larger size and Entirely Pets had by far the best price. Very happy with the purchase.