Dare to go bare with Sally Hansen's new Repair + Rescue treatment collection. A skincare-inspired, clinically and consumer tested collection that visibly improves the overall appearance of your nails. Sally Hansen's new Repair + Rescue Insta-Smooth Ridge Filler leaves your nails feeling hydrated and restored by instantly filling ridges and concealing nail imperfections. This primer, containing hyaluronic acid, is designed to create a voluminous effect on nails, smoothing your nails instantly.