I've been in search of this colour my whole life. Periwinkle blue is such a gorgeous shade that is
so, unbelievably, hard to track down. I literally jumped for joy when i saw this in sephora.
The polish goes on easily and is opaque with 2 coats. I found the wear time was around 5-6 days with a top coat.
Buy for £14.50 (
here).