Nail polish has a leg up on many other beauty products when it comes to shelf life. If stored out of direct sunlight in a cool, dark place, nail polish can last a long time. But we’re all familiar with that moment when you go to grab your oldest and most beloved shade only to find clumps or a thick consistency, making smooth polishing nearly impossible.
Dr. Chris Adigun, an NYU clinical assistant professor of dermatology and a member of Dermelect Cosmeceuticals’ board of advisors, has a solution for nail polish revival. “Over time nail polish can thicken due to evaporation of the solvent medium,” she says. When this happens, she suggests adding a small amount of acetone to the polish and mixing it with gentle shakes. “Start with just a few drops because that may be all that’s necessary.”
Remember to keep the neck of the bottle clean with acetone as well. Happy polishing!