Gluco + Chond w/ Manganese 60c by Pure Encapsulations

What the brand says

This convenient formula combines two of the most important cartilage building blocks, glucosamine and chondroitin, with manganese ascorbate for enhanced connective tissue support. Glucosamine promotes the synthesis of glycosaminoglycans, such as chondroitin sulfate. The primary structural compound of articular cartilage, chondroitin sulfate also helps to block the activity of degradative enzymes. - glucosamine