This product contains natural marine glucosamine! 1 sachet contains 1500 mg of glucosamine sulphate. GLUCOSAMINE 1500 mg MARINE does not contain chemical additives, preservatives or other excipients, so the taste is neutral. Glucosamine is found in all tissues in humans, but in high concentrations it is found in articular cartilage. Calcium is needed for bone health to maintain dental health. Calcium helps maintain normal muscle function.