Neroli oil is an essential oil, extracted from the flowers of bitter orange trees. It’s also known as orange blossom oil. The oil is extracted from the flowers by steam distillation, the rich, floral scent, with citrusy overtones, uplifts the mind. Inhaling neroli oil may help lower blood pressure and easing anxiety, by reducing cortisol, a stress hormone. Its limonene content may also have a positive effect on the autonomic nervous system, which controls breathing and heartbeat.