Puritan Pride - Joint Soother Glucosamine Vitamin D3 & Boswellia 60 CapletsGlucosamine contributes to joint health. It is a key structural component in cartilage and, as a dietary supplement, it plays an important role in the maintenance of joint cartilage. Supplementing with 1500 mg of glucosamine a day nourishes joints for comfortable movement. It also supports mobility and flexibility so you can go about your day with ease. Glucosamine supplements are the nutritional way to help strengthen your joints.