Glucosamine Sulfate 500mg 250ct by Douglas LabsGlucosamine Sulfate, provided by Douglas Laboratories, is a well absorbed source of glucosamine, an important precursor for the synthesis and maintenance of connective tissues. Glucosamine Sulfate capsules may be a useful dietary supplement for individuals who wish to support the structure and function of the body's connective tissues, such as cartilage, bone, tendons, ligaments, and skin. These statements have not been evaluated by the Food and Drug