After, painting the crackle I realized my nails were not going to glow as much because of the black polish. So I added another coat of "Rescue Me" over the crackle. It made the black a lighter shade. But it did not change it much at all and it glowed just the way I was hoping it would. I loved turning off all the lights and watching my nails glow with a greenish light. Over all this manicure was easy and very cute.