Joint Comfort: Pure Encapsulations Glucosamine and Chondroitin with MSM offers highly purified constituents to support healthy cartilage formation and joint comfort.*.Cartilage Support: Chondroitin sulfate is responsible for building the ground substance of cartilage, molecules known as proteoglycans.*.Enzyme Activity: Chondroitin sulfate may maintain healthy enzyme activity.*.Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity..Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.