I started with Morgan Taylor REACTmax Optical Brightener, 2 coats of polish and finished with cuccio High Gloss Top Coat. The formula on this polish was a little runny but also super opaque. Just be sure to wipe the neck of your brush so you don't overload the nail.
Like what?! This reminds me a lot of OPI Alpaca My Bags but this has a little more grey to it. I'm obsessed.