Yes, it's true. I had a goatee up until I started down the traditional path two years ago. Nice and black. I've been clean-shaven (except for Movember) since then until last week, when I decided to grow the goatee back. Now it's mostly gray! I have to conclude that it was all because of the razors.
Post hoc ergo propter hoc.
Post hoc ergo propter hoc.