Working better than any pick-up line you could muster, facial scruff sends all the signals you need about your attractiveness to the opposite sex. A study in the journal Evolution and Human Behavior found that out of a range of bearded and clean-shaven looks, women consistently chose the heavy-stubble style as the one they were most sexually attracted to.
The good news is that there is not a lot of technique involved in acquiring this look. “It’s usually about a week to 10 days out from when you stop shaving,” says O’Malley. The toughest part is making it through days one through five, when the itchiness of new growth will have you second-guessing you decision. Soothe the skin below with a daily moisturizer.