Take care of the tissues that keep your joints working smoothly with the all-natural nutrition of Swanson Premium Glucosamine and Collagen Type II. It takes good nutrition to maintain the cartilage and connective tissues that make healthy joint function possible, and that's just what our Glucosamine and Collagen Type II delivers. It combines 500 mg of glucosamine sulfate from shellfish with 250 mg of kollaGen II-xs, a patented, extra-strength avian cartilage extract with the perfect proportions of chondroitin, hyaluronic acid and collagen type II protein. It's a great, economical way to nourish your joints every day.