So I'm a day late posting yesterday's Californails nail art may challenge. Day 7 was Neon :) I decided to use Serum No. 5's Dayglow. Dayglow is a pastel yellow that has a fierce glow in the dark effect. *Swatch info: three coats w/top coat*. To make this polish glow, I held my hand in front of my desk lamp for 30 seconds then turned the lights out. This had such a strong glow that it was glowing even before I turned out the light.