Grace of Monaco
See All Photos David Koskas

Replicating the hair of an icon is no easy task, especially when said icon is former Princess of Monaco and Oscar-winning actress Grace Kelly. Much of the upcoming film Grace of Monaco (with Nicole Kidman as Kelly) depicts the star’s life as a newly-appointed royal in the 1960s and so hairstylist Agathe Dupuis went about recreating several of Kelly’s glamorous looks with the help of her styling essentials: Leonor Greyl hair products.

In addition to princess-worthy looks, Dupuis kept men’s hair in place for party scenes, such as the Red Cross Ball, with the brand’s Gel a l’Hibiscus ($35; leonorgreyl-usa.com), and often relies on Tonique Hydratant ($43) and Algues et Fleurs ($35), which she claims “are very practical while filming, and give the actors’ hair good texture.” The stylist’s go-to, however, was the Éclat Naturel ($46), a nourishing styling cream “which I use for everything from scalp massages to the treatment of the ends of the hair. I can leave it all day long on the hair of the actors, it is perfect!”

See 10 striking photos of ultimate style icon Grace Kelly in our gallery.