This is Shellac's Hot Pop Pink. At first I thought I wanted a light colour so did 1 coat of Romantique, but is is soooo light (a good base for a french mani really) and I knew that another coat would fix it, so I put on a coat of Hot Pop Pink on top. I just did 1 coat and the colour is still strong.
It would be even more concentrated if I had done 2 though.
ETA, this is a few days old now so please forgive the regrowth.