What it is: A new, improved formula of NARS Nail Polish for long-lasting, durable, glossy nails. What it does: This season, the NARS Nail Polish line debuts a new long-wearing formula that provides a tough, chip-resistant finish with UV protection to prevent polish discoloration. What else you need to know: For best results, apply NARS Base Coat before applying color, then use the quick-drying NARS Top Coat for a shiny finish. NARS Nail Polish is free of toluene and formaldehyde.