21St Century Glucosamine & Chondroitin Plus Tab 60S is a Dietary Supplement containing Glucosamine, Chondroitin with Hyaluronic Acid. Maximum Strength. For Healthy Functioning of Tendons and Joints. Maximum Strength. Glucosamine, Chondroitin, MSM (methylsulfonylmethane) and Hyaluronic Acid are important nutrients to help support joints, cartilage and tendons. Help support joints, cartilage and tendons. No added Sugar, Yeast, Preservatives or Artificial Flavors. Gluten Free.