“Nails must be dry when they are cut. Cut the top of the nail straight across using a chisel or a nail clipper, and lightly file the corners. You should never cut deep into the edges because this can cause ingrown nails. Choose a glass file for its softness and long-term effectiveness. File your nails regularly to maintain a perfect line”. Bastien recommends always keeping 1 or 2 mm of the white part of the nail, as this will avoid future problems.