L.A. Colors' Color Craze Base/Top Coat is a practical nail treatment that works as a primer and sealer, making nail polish extra vivid and longer-lasting. Its base coat function protects the nails from staining or discoloration caused by polish pigments, and it dries to a high-gloss finish when used as a top coat.This versatile 2-in-1 clear nail coat is easy to apply with just one or two strokes using the included brush.