If you are using any gel, including CND Shellac, you will need the use of a LED or UV lamp to cure it. You can find the lamps were carry here: https://www.beyondpolish.com/collections/lamps
If you're doing your own gel nails for the first time, you should try our Le Mini Macaron kits. You can find some pro tips for doing your own gel manicures at home here!