This nail treatment utilizes biodiffusion technology, the same molecule used in epres hair products, to provide fast and microscopically proven repair to your nails. Nails and hair are both made of keratin, but nails are far more cross-linked than hair. When you damage a nail, you damage more bonds, which makes repairing the structure of the nail more difficult. This first-of-its-kind bond repair for nail treatment penetrates the tightly cross-linked bonds in the nail to repair from within, resulting in lasting restoration for brittle, dry, and discolored nails using the highest concentration of only two active and clean ingredients. Most users experience results after just one use and will continue to see noticeable repair over time.