Professional LED building gels with an improved formula harden in LED, UV or CCFL light. They harden faster and without a burning sensation on the nail when it hardens. You can use them to extend the nail to a stencil or tip. Nail Perfect® offers a professional line of gels at competitive prices and with exceptional quality. The line of gels was developed by the world's best chemists with more than 30 years of experience. The gels are self-leveling and easy to use. The appropriate density and consistency of the gel allows beginners and advanced stylists to work on the design and extension of various forms of artificial and natural nails.