designed for joint and cartilage support contains msm glucosamine and chondroitin shellfish free solgar have specially designed a convenient combination of msm glucosamine and chondroitin glycosaminoglycans occur naturally in the body and help maintain and support collagen and elastin a naturally occurring source of sulphur msm methylsulphonylmethane is one of the major building blocks of glycosaminoglycans glucosamine and chondroitin also make up the structure of glycosamin