I saw a live demonstration of this product at the Natural Products Expo and I really liked it. You may have seen similar kits sold in malls that allow you to buff your nails to get a shiny polished look on your nails. This kit costs more, but it is a medical grade kit that actually makes your nails stronger and healthier in addition to giving them a beautiful shine. The shine also lasted longer than the cheaper kits. If you have a problem with split nails or cracking cuticles, this kit will help your nails heal naturally.