According to internet experts, our fingertips are protected by a layer of protective protein called alpha-keratin.
They can get dirty and turn into claws if you don’t trim them regularly. But they’re pretty useful too, especially if you need to pick a sticker off a new game you’ve bought or just want to give your head a good scratch.
But with the help of some nail varnish and a steady hand, your fingernails can become tiny blank canvases to show the world what you’re into – and that’s what these Harry Potter fans have done.
Check out this amazing Hogwarts-themed nail art and vote for your favourite designs below!