Facial Scruff = Hot. It's Science.

Stubble is hot. You know this. And now science confirms it. To be clear: We're not talking about a soul patch or an elborate Riff-Raff style swirling goatee. Just plain old stubbly, scruffy, ungroomed facial hair.

From ScienceNOW:

A new study shows that facial hair says a lot about a man and that attractiveness peaks at the "heavy stubble" phase. Researchers photographed 10 men at four stages of beard growth: clean shaven, 5-day "light" stubble, 10-day "heavy" stubble (shown), and fully bearded. Three hundred and fifty-one women and 177 heterosexual men viewed the photos and rated each face for attractiveness, masculinity, health, and parenting ability. Women ranked heavily stubbled faces as the most attractive. Participants said that the clean-shaven men looked about as healthy and attractive as those with a full beard, but rated the bearded men higher for perceived parenting skills. Light stubble got the short end of the stick, garnering low scores across the board from both men and women. The 5-day growth may be too patchy, the researchers write in the May issue of Evolution and Human Behavior, which suggests "a threshold of density and distribution may be necessary for beards to function as an attractive signal." Stubble conveys maturity and manliness, they write, with less of the macho aggressiveness implied by a full beard.

Word.

And now, just to make sure we're all on the same page, our own VERY SCIENTIFIC POLL.

Facial Scruff = Hot. It's Science.

Facial Scruff = Hot. It's Science.

Facial Scruff = Hot. It's Science.

Facial Scruff = Hot. It's Science.

Facial Scruff = Hot. It's Science.

Facial Scruff = Hot. It's Science.

Facial Scruff = Hot. It's Science.

Facial Scruff = Hot. It's Science.

Feel free to add your own images aka HIGHLY SCIENTIFIC proof below.

Images via Getty and AP.