Freeze it out
Since cold hardens polish, ice water baths are also a great setting trick. Before you start painting your nails, fill a mixing bowl with ice cubes and run cold water over the top. Then, when you’re finished painting, dip your nails in for about a minute. This is a great way to help protect against divots, since it helps solidify polish all the way through, not just on top. The opposite also holds: if you’re having trouble removing polish, soaking your hands in warm water will make it easier.
Thin it out
Instead of putting on one or two coats of thick polish, apply three extremely thin coats, and let each dry for a couple of minutes before you layer on the next. It might seem like it slows down your manicure, but it actually makes overall drying time much faster.