Like many cosmetics, nail polish that has been exposed to air will lose its effectiveness over time. Old nail polish will become thick, clumpy and difficult to apply.
Whether you have clumpy nail polish or just a case of thick nail polish, this nail polish thinner trick will have your bottle as good as new in no time. The solution is
How to Revive Old Nail Polish. . Thick & clumpy nail polish. . moment when you open your favorite bottle of nail polish and it's dried out or super thick.