A few drops will fluidify thickened nail polish. A few drops will restore thickened nail polish to its correct consistency and make it easier to apply in thin coats. Two to three fine coats will last longer rather than a thick coat of nail polish that will flake or peel within a couple of days. Directions of Use: If polish is too thick, add one or two drops of Thinner and shake well. Let it stand for 20 minutes before using polish. Note: Never fluidify a nail polish with nail polish remover or acetone, as these two products will ruin its homogeneity.