NOW Foods Glucosamine 500/Chondroitin 400/MSM V-Caps, 180 ct.NOW® Glucosamine & Chondroitin with MSM combines three of the best known nutrients available for the support of healthy joints in one dietary supplement. Scientific studies have demonstrated that glucosamine and chondroitin can promote normal joint mobility and comfort. MSM is present as a naturally occurring sulfur compound for optimal nutritional support for the production of healthy joint structures.