There are many brands of this. I used Shellac and it worked really good too. I was at a surgery center recently for my carpal tunnel and one of the nurses said she had to go into the shop to have her nails removed because they could not have them at work. She got 'Shellac' and her nails were lovely. They are hard as nails, and are not supposed to crack or break. You cannot remove the color with regular polish, it has to be done with special stuff. You can go online and read about it and even buy it from Amazon with the UV lights too. Much cheaper that way.