Calvitan-GC contains the preferred D form of Vitamin D that is produced by the skin on exposure to sunlight. Calvitan-GC provides a rich source of Calcium Magnesium and Zinc which contributes to the maintenance of normal bone. Vitamin C contributes to normal collagen formation for the normal function of bones & cartilage. âMaintains Calcium Homeostasis âHelps in the Formation of Bone Mass âEnhances Joint Flexibility âAlleviate Pain & inflammation Ingredients: Calcium Carbonate Magnesium Zinc Copper Manganese Selenium Glucosamine Chondroitin Vitamin D Vitamin C Ginger Rhizome Extract. Suggested Use: - One tablet daily or as directed by healthcare practitioner