Patented ulti-plex technology repairs the keratin structure of the nail by penetrating the surface and building new bonds inside the natural nail. Do you want ctrl alt del nail damage repair mode . Want to prevent nail damage from things like hand washing or cleaning products ding ding ding repair mode . This breakthrough bond-building nail serum completely reprograms your nails, resulting in 99% repair of nail keratin* nails look better after the first application, and with continued use you can expect smoother, stronger, break-resistant nails and an improved appearance of grooves and color. It's repair like never before. *When used as directed.