Petit Grain refers to the oil extracted from the leaves of the bitter orange tree, a citrus tree cultivated in Sicily, North Africa, and Egypt. The bitter orange tree produces three different oils: Neroli from the flowers, Petit Grain from the leaves, and the oil from the fruit peels. Petit Grain is a sought-after raw material in perfumery. In natural medicine, Petit Grain is used for skin and digestive issues, as well as for nervous tension.