it’s a supplement mainly intended for joint and cartilage support. Glucosamine: a natural component of cartilage; supplements may help reduce joint pain and stiffness, particularly in some people with osteoarthritis. MSM (methylsulfonylmethane): a sulfur-containing compound that may have anti-inflammatory and pain-relieving effects and can potentially improve joint comfort. Together: they’re commonly marketed for mobility, joint flexibility, and reducing discomfort during movement.