Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Just like the hair on our head, eyebrows can become thinner and prone to sparse spots. And if you’re like us, maybe you also over plucked your brows in your youth, adding to thinner-looking arches.