Since 1947 Shellfish-Free Promotes Healthy Joints Supports Comfortable Movement Certified Gluten Free Wheat & Dairy Free Suitable for Vegans Kosher Parve Dietary Supplement OptiMSM Regenasure Glucosamine This formulation provides vegetarian-source Glucosamine to nutritionally support joint health. Vitamin C and Manganese are also included to support production of collagen and healthy cartilage compounds. MSM a natural source of the important mineral sulfur Ginger Root and White Willow Bark are also included. Collectively the ingredients in this formulation help to promote healthy joint structure and flexibility which supports comfortable movement. Individual results may vary.