Benefits Of Healthvit Petitgrain Method from the green twigs of bitter orange plant. This oil is available in yellow to brownish yellow color and in clear liquid form. It is popular for its sweet floral clary stemmy odor. USES Petitgrain oil is widely used in perfumery and aromatherapy. It is recommended for various skin problems including clearing up a greasy skin, toning the skin and in case of acne & excessive perspiration. It is also used in nervous exhaustion and stress-related conditions. It is beneficial for convalescing after an illness & also insomnia.