Bring your own polish to the salon to ensure that you can make touch-ups later.
When a nail chips, you have two options. If it's a minor chip, carefully fill the area with the matching color using a toothpick or nail dotter. To remedy larger issues, dip the bottom part of a finger in nail polish remover and gently rub over the chipped nail to diffuse the original coat. Next, paint a new layer of polish over it. Finish both options with a top coat.