*Added: I came across another post where I talked about this polish - not the same as either of the ones below - where I quote somebody else as saying this is not a creme, it's a crelly. I'm always terrible at spotting crellies unless it's super-obvious but I'm going to go on the assumption that they are correct.
Here's my original comparison post showing several different colors similar to this. And here's the picture with the duo as I first saw it, as a birthday present.
I'm pretty sure this is discontinued - I suspect it was snapped up more by the people collecting "Frozen" merchandise than for the polish itself. And this polish, at least, is hardly unique.