For Skin: It is effective at fighting bacteria and inflammation on the skin that can lead to acne. It improves the flow of blood to the skin and helps in clearing the clogged pores. For Hair: It helps the hair become thick, shiny and free of split ends. It has a soothing effect on irritated scalp. For Aromatherapy: Inhaling it directly can lift your mood and bring on relaxation. Orange essential oil has a direct effect on the olfactory system of the brain that quickly evokes emotional responses