N-A-G 750 (N-Acetyl Glucosamine) 60 caps, Jarrow Formulas

What the brand says

N-Acetyl Glucosamine is a molecule consisting of an amino acid (glutamine) and a carbohydrate (glucose) that has been stabilized by complexing it to an acetyl group. N-Acetyl Glucosamine is the bodys precursor to hyaluronic acid which is part of the synovial fluid that lubricates joints. N-A-G is produced in the intestinal tract via specialized cells called goblet cells that are responsible for producing your mucin (or mucosal lining). N-Acetyl Glucosamine is the superior form of glucosamine for joint and intestinal tissue. This product is best taken with BioSil, the only high potency source of orthosilicic acid, the biologically active form of silicon that strengthens joints.