This would explain why no-one ever gets a nice close-up look at his face.
-Ray
In one story where he's trying to prove to a kid that Clark is Superman, the kid only believes him after he sees that Clark's bathroom cabinet has not toothpaste, deodorant, mouthwash ect...
Yet, bad breath is caused partly because when you eat, part of the food leaves a "trace" in your mouth. So, the big question for me today - does Superman have bad breath at times? Not that I would mind if he'd save me from a car crash...