Ruling on using nail polish, and does it have to be removed when doing wudoo’

We do not know of any ruling on that, but
it is better not to use it, because there is no need for it, and because
it may prevent the water reaching the skin when doing wudoo’. In brief,
it is better not to use it, and to be content with henna, because that
which the earliest Muslim women used is better. If a woman does use
it, then she has to remove it when doing wudoo’, because – as we said
– it prevents the water from reaching the skin. And Allaah is the Source
of strength.