**brand new, unopened Unlike other products, our breakthrough nail treatment penetrates the tightly cross-linked bonds in the nail to deliver repair from within, resulting in lasting restoration to brittle, dry and discolored nails. • Immediate Repair: Most users experience results after just one use and will continue to see noticeable repair over time. • Clean Formula: Just two 100% vegan, biodegradable, polymer-free ingredients. • Biodiffusion™ Technology: Utilizing the same bonding molecule found in epres’ award-winning Bond Treatment Repair for hair, this technology penetrates the nail to rebuild from within. • Polish Compatible: Use it under any polish or gel manicure as a strengthening base.