Triple-Strength Supports Mobility and Flexibility with Healthy Cartilage. Triple-Strength Glucosamine Chondroitin with MSM supports your day-to-day mobility and joint comfort over time with the clinically testing dosages of 1500 mg of glucosamine, 1200 mg of chondroitin. Further, it supports healthy cartilage with 500 mg of MSM, an organic form of sulfur. Studies show that glucosamine can play a part in promoting healthy cartilage, chondroitin supports joint flexibility. MSM is beneficial to overall joint health and supports mobility and comfort.