Swanson Glucosamine Sulfate 2KCl is a shellfish-derived compound that provides essential elements for shock-absorbing cartilage and protects joints for comfortable movement. Each capsule provides 500mg of glucosamine sulfate to support healthy connective tissue in joints and throughout the body. Supports joint integrity, movement and flexibility Helps protect cartilage Maintains healthy connective tissue Dosage: Take 1 capsule 3 times daily with water and food.