BOIS IMPÉRIAL by Quentin Bisch Explore the nocturnal side of Bois Impérial. Created as a quintessential version of the original fragrance, Bois Impérial Extrait takes you to the nocturnal side of the perfume. Darker, richer, stronger, it reveals a new sensuality and a rare intensity with twice the concentration of the Eau de Parfum. An absolute of seduction.