This formulation provides Glucosamine, along with MSM, a natural source of the important mineral sulfur. It also includes Vitamin C, Manganese, Ginger Root and Willow Bark extracts. Collectively, these ingredients help to promote healthy joint structure and flexibility, which supports comfortable movement. This formulation also supports overall joint health.* Vitamin C and Manganese are also included to support production of collagen and healthy cartilage compounds. MSM, a natural source of the important mineral sulfur, Ginger Root and Willow Bark extracts are also included. Collectively, the ingredients in this formulation help to promote healthy joint structure and flexibility, which supports comfortable movement.