From Manufacturer''s Label:Extra Strength Glucosamine Chondroitin MSM with Ester-C Tablets is ideal for anyone seeking extra nutritional support for their cartilage and joints.** This formula is specially designed to nourish your joints and cartilage and provides a lubricating factor and helps maintain flexibility, mobility and comfortable movement.**This formula also contains Ester-C to support joint health by helping to maintain enzymes necessary for collagen formation in their active state.**FREE OF: Gluten, Wheat, Dairy, Soy, Yeast, Sugar, Artificial Flavor, Sweetener, Preservatives and Color.Contains 180 tablets.Manufactured by: Solgar