Maybe turning the head to avoid sun in the eyes keeps the nose shaded, or maybe it is the most exposed part of the skin so has a protective tan before anywhere else...
I found this advert https://nozkon.com/ and couldn't quite decide whether it was a spoof or not, I think it is serious, How about
I'm not sure how it both floats and yet absorbs enough water to do evaporative cooling.The NozKon® can be:
trimmed for a custom fit on your nose
soaked in water to provide additional cooling in the heat
used as a floatation device for most sunglasses
A