How Long does Nail Polish Last?

Should you be asking how long polish lasts on your nails, that would depend upon the care of your manicure. A couple of coats of a clear nail polish will extend your polish for another week at least. As far as how long polish lasts in a bottle, most polish is good for about a year or so before it will thicken. You can add a bit of nail polish remover or acetone to thin it out.