Why does finger nail turn pink?

Why does it turn pink?Why does finger nail turn pink?
are you SURE it's not nail polish?Why does finger nail turn pink?
circulation
All the time? Or only after you press it? Cause if it's after you've pressed it, it's because blood is returning to it's place (called capillary refill).
circulation
yeah maybe its nail polish
to show you that you are hydrated