Continue to use the used nail polisher
In the past, I have always been annoyed that nail polishing files after a few uses no longer helped to the usual great shiny fingernails.
By chance, I came up with the idea of moistening my pruned * nails and then polishing them. The nails were initially dull and then after a few seconds of polishing high gloss. Give it a try!
* The polishing files usually also have a side, with which you should grind the nails before polishing.
