While Leucatin is believed to aid in the removal of nail fungus within one week, the actual nail will need time to heal and regenerate in order to look healthy and shiny. This may take some time, the length of which will be determined by the severity of the nail fungus infection itself. If a more advanced condition was present, it may take longer for the nail to regain it’s natural beauty. Leucatin is not designed to restore the look of the nail, but rather to remove the infection that will allow the nail to regenerate itself.