Never underestimate the power of a gel manicure : They're practically indestructible, unbelievably shiny, and, best of all, they require little to no drying time, so there's virtually zero chance you'll chip or smudge your polish the second you leave the nail salon —and for weeks to come. The downfall? Removing the LED-cured lacquer—especially when a trip to the nail salon isn't an option. (Just in case you haven't heard: It's not OK to pick or peel off your gel polish.) "Our nail plates are made up of layers of keratin," says Sigourney Nunez, OPI’s North America Education Manager. "When you improperly remove the gel, you’re unintentionally removing some of those layers, which will cause your nails to become weak and thin." While it might be tempting then to extend the life of your manicure for as long as possible, all good things must come to an end, and, in this case, that's after three weeks, says Jin Soon Choi , founder of JINsoon N...