People assume that those with facial hair are more likely to harbour bacteria on their faces than the clean-shaven – but the truth is more tangled The idea that beards are dirtier than clean-shaven faces has been floating around for decades, says John Tregoning, professor of vaccine immunology at...
Source: [Guardian International](https://www.theguardian.com/lifeandstyle/2026/jun/22/is-it-true-that-beards-are-unhygienic)