Ever had that moment where your family looked at your latest supercool beauty choice and raised a concern eyebrow? We've got the solution. Leighton Denny (multiyear winner of the British Nail Technician of the Year award) took his tip expertise and put it into his own line of polish. And I'm obsessed with this rich purple shade, which is unusual enough to make me feel a little like a punky London girl but with a hint of shimmer that keeps it sweet enough to wear to Christmas dinner. And in case you are running behind (because who isn't right now?), this deeply pigment polish only requires two quick coats to achieve max color. Rebel is a Net-a-Porter.com exclusive ($19), so you don't even have to battle the last-minute store hordes to get it.