Keira Knightley - Lead 2016
Credit: Brent N. Clarke/Getty

Eyebrows over everything. In a striking contrast to the pencil-thin arches that were popular in years past, brows have been established as the most-important feature on a person's face, with science to back up the fact. As it turns out, brows are also a determining factor for Keira Knightley when it comes to picking makeup artists. "I was told very early on that if a makeup artist tries to take your eyebrows off, that means he or she is absolute sh-t," the star joked in an interview with InStyle UK. Considering that her own set has maintained their perfect shape for years, we figure Knightley keeps herself in good company.

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Though her brows remain groomed, the rest of Knightley's beauty method falls in line with the U.K.'s more low-key attitude to hair and makeup. Smudged black liner was her go-to look for years, and she didn't stress over skincare too heavily until she started breaking out. "I think we Brits are very low-maintenance. For good or bad, you rarely walk around New York or L.A. and see women as grungy as you do in London," she said. "In the U.S., they always have their hair and nails done, which isn't big culturally in England. I am not a sleek person in any way. When I look sleek, I feel like I'm pretending." Don't we all? Since becoming a mom, the star may have had a little less time for those indulgent at-home treatments, but she still makes it a point to keep her curls and complexion in check. "My new approach is, 'Do what you can remember, and don't worry about it too much,'" she adds. Amen, sister.