Glucosamine Chondroitin plus Hyaluronic Acid & MSM Tablets, 110 ct, QC94720 Sale! This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Compare to Flex-a-min. Glucosamine, chondroitin, MSM (methylsulfonylmethane) and hyaluronic acid are important nutrients to help support joints, cartilage and tendons. No added sugar, yeast, preservatives, or artificial flavors, and gluten-free.