Label Information " Synergistic Glucosamine/ MSM Formula, Doctor's Best, 180 Capsules Sodium Free Science-Based Nutrition Maintains Healthy Joints and Connective Tissue Dietary Supplement Synergistic Glucosamine/MSM Formula supplies only sodium-free, potassium-stabilized glucosamine sulfate. Lignisul MSM is pure MSM (methylsulfonylmethane), a naturally-occuring source of organic dietary sulfur that is readily absorbed and utilized by the body to meet its sulfur needs. Glucosamine Sulfate supports normal, healthy joint function and helps maintain healthy cartilage in joints. MSM supports organ and joint function by donating sulfur for maintenance of healthy connective tissue. Vitamin C is essential for production of collagen, a protein that gives strength to cartilage. Suggested Use: As a dietary supplement, take 2 capsules three times daily. Note: Glucosamine is obtained from the shells of shellfish. Supplement Facts Serving Size 2 Capsules Serving per container 90 servings Amount Per Serving DV% Vitamin C (ascorbic acid) 100 mg 167% Potassium (from glucosamine sulfate KCI) 61 mg 2%* Chloride (from glucosamine sulfate KCI) 56 mg 2% --------------------------------------------------------------- Glucosamine sulfate KCI 500 mg Supplying sulfur 80 mg MSM LIGNISUL 1 gram (1000 mg) Supplying sulfur 340 mg --------------------------------------------------------------- * Percent daily value based on a 2,000 calorie diet. Daily Values Not Established. Other Ingredients: cellulose, magnesium stearate, gelatin capsule. Contains nothing other than listed ingredients. "