Brilliant shine for up to 10 days! What it is: Top coat that delivers mega shine and mega long wear. How it Works: Our light-refractive micro-diamond formula adds brilliant shine and strength. Fuses and seals manicure layers into one powerful protective shield. The Results: Brilliant, chip-resistant manicure that lasts for up to 10 days. Salon tested. sallyhansen.com. America's No. 1 nail brand. Made in USA.