Beauty entrepreneur Anastasia Soare used to have pencil-thin, round eyebrows—one of her biggest grooming regrets. “In pictures, I looked surprised all the time,” she said. Realizing the shape wasn’t flattering changed her life, she said, and she wanted to help enlighten other women. Ms. Soare, 65, opened the salon Anastasia Beverly Hills in 1998, using a now-trademarked ratio technique to shape the brows of clients including Naomi Campbell and Cindy Crawford. She is still responsible for some of the most famous brows in the world, including those of Kim Kardashian, Michelle Obama and Oprah Winfrey.

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