Saving the best for last, here is BL602. It had a really strong blue flash in the bottle, and even though I doubted it would have such an effect on the nails... it did! The resulting color is truly astounding--it's so bright and glowy! It reminds me of the black lights at Chuck-e-Cheese's, or the ones under the lamps at nail salons. This polish definitely made it into my pile of favorites!