Kate Middleton recently made waves because her beautician claimed that she used Nutella as a facemask.
Actually, turns out it's a bit of a mixture of a few other things such as sugar, but ultimately she's basically smearing a delicious breakfast food on the future queen of England's face.
In theory, because it contains milk and oil (of the palm variety so let your conscience bear that in mind), it should have a moisturising effect on your skin.
Hazelnuts are also high in vitamin E, which is great for your hair, skin and nails.
But at the end of the day, don't forget that you're just chucking Nutella on your face and if you think there are any health benefits to that you need to fly all the way to Mars and stay there.