Collagen Formula Pro is the result of a search for the best forms of collagen, of the highest quality and with the most solid foundation. This product contains undenatured collagen type I, V and X from eggshell membrane (Ovomet®) and undenatured collagen type II (UC-II®). The formula is completed with a superior form of vitamin C (Ester-C®), which is important for collagen production and good for cartilage. These ingredients form a strong trio whose components complement each other very well.