Dietary supplement. N-Acetyl Glucosamine. Connective tissue support. N-A-G, N-acetyl glucosamine, is an amino sugar (the building blocks of mucopolysaccharides). It is formed from L-glutamine and glucose. N-A-G forms the basis of complex molecular structures which are key parts of the connective tissues and mucous membranes of the body - tendons, ligaments, cartilages, bone matrix, skin, joint fluids and intestinal lining (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease). Contains no yeast, dairy, egg, gluten, soy, or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.