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Ariana Simone, left, and Chauncie Parchment had a certain coolness about them as they were walking along Canal Street in Manhattan on a Sunday in early January. Wearing shades of lavender, blue ...

We’ve all been there. Two weeks after getting that perfect gel manicure, your polish starts lifting at the edges, and the temptation to peel it off becomes almost irresistible. But before you ...