OPI REPAIR MODE REPAIR MODE. Features: Meet the first ever bond-building nail serum with Patented Ulti-Plex Technology that penetrates the nail surface to build new bonds from within. The result? 99% nail keratin repair* and stronger, smoother nails. Mic drop.. Nails look improved after the first application, and with continued use, you can expect smoother, stronger nails that are resistant to breakage and an improved appearance of ridges and color. It's repair like never before.. 4x stronger nails in 6 days. 9-Free. *When used as directed. Formulated Without: Formaldehyde. Toluene. DBP. Parabens. :