The French make-up artist makes actresses camera-ready-and her cosmetics and skincare line is purchased by decidedly non-superstar women everywhere.

Mercier was raised in Provence and studied to be an artist. In 1985, she made the move to New York to work on the launch of the American Elle, where she befriended photographer Steven Meisel. After she went freelance, she happened to work with the famed photog on a Madonna photo shoot for Vogue, an experience that landed her a job as the singer's personal make-up artist. Mercier spent eight years by the Material Girl's side while also working on ad campaigns for clients like Chanel and Gap.

In 1986 Mercier launched a line of high-end cosmetics, which quickly became popular among high-end social fixtures and celebs. But while Mercier's name continues to appear on millions of tubes of mascara, she no longer has an equity stake in the company. These days, Mercier spends her time doing store appearances and doling out make-up advice. She also makes time for personal sessions with various A-listers. In 2006, Mercier published a book, The New Beauty Secrets. Shockingly, many of these "secrets" involve the purchase of products from the Laura Mercier line. [Image via Getty]