Although mascara should be replaced every 3 to 4 months, I use to replace mine much sooner just because it dries out so fast and creates undesirable results. But, there’s an easy fix for that! Add a drop or two of Visine (or any brand of eye drops) into the tube, and then rub the wand around inside. The Visine softens the mascara liquid, making it apply as if it were a brand new tube!
32 Makeup Tips That Nobody Told You About (With Pictures)