Is a Lush Beard a Signal of Having More Testosterone?

 Title of a piece on the Web.  Actually since many (most?) guys shave their faces every morning, it is hard to believe that a beard is attractive to chicks, or anyone else.  If they were, more guys would grow beards. Or that a beard is a mark of better genes or more testosterone or anything else other than being a guy.  And I have never heard a Darwinian (or any other science based argument) about why guys grow beards and chicks don't.