(See also Overview of Medicinal Herbs and Nutraceuticals.)
Chondroitin sulfate is a natural component of cartilage. It is extracted from shark or cow cartilage or manufactured synthetically. It is frequently combined with glucosamine.
People most often take chondroitin sulfate by mouth for osteoarthritis. For arthritis, it is frequently taken along with glucosamine. Scientific evidence shows no benefit when chondroitin sulfate is taken by itself. However, evidence suggests that combined with glucosamine, it may reduce joint pain and improve joint mobility.