a nail polish once worn usually stays for a few days. so most likely the nail polish worn a couple days back would still remain.Typical response. See the word "Islam" or "Muslim" and start trolling
The first prayer (Fajr) is offered at dawn. Who in their right minds applies nail polish at that time ?? Although performing Wodhu before every prayer is highly recommended, one need not perform it if the Wodhu has remained unbroken and prayers can be offered directly. So there is no need to remove nail polish 5 times a day.
to remove the nail polish we need to use a chemical called acetone.
if you use this very often the skin around the nails harden and in general too much chemical on your body is not that good.
so women generally do not put nail palish even on a daily basis let alone multiple times a day.
anyways.. my muslims friends tell me they never heard of this.. heck they say they dont pray 5 times daily.