Restore/ Prevent Sticky Thick Nail polish | DIY

I have hoards of nail polishes and often people ask me if my nail polishes survive. Do they dry up or become sticky? Well, yes, they do sometimes after several years or when I overuse them. A good nail polish from the trusted brand will never dry up if you use it carefully. I always apply my nail polishes in an air-free room. I mean to say where there is no flow of air. If you have a running