Nail polish has badly stained nails, how to clear?

You will need, lemon juice, a bowl, and something to buff you nails with. Ok so this will take couple days so don't expect it to be poof gone. So pour the lemon juice in a bowl and soak your nails in there for 10 mins. Buff the polish and if you want to use some nail varnish remover. This works because lemon bleaches the color and buff helps remove the color. Don't buff to hard and this works for nail stains too