UV color coat. Featuring a Base Coat, Color Coat and Top Coat - and the exclusive CND LED Lamp. This system works together like no other to deliver two weeks of high-performance wear with no nail damage. Directions : Shake to blend. After applying and curing Shellac base coat, apply a thin layer to all 5 nails. Cure for 2 minutes in the CND UV lamp. Repeat on other hand. Apply second coat of color using the same process. Follow with Shellac top coat.