Orange essential oil has different benefits. It is used in aromatherapy to help elevate the mood, improve sleep quality, relieve an upset stomach, reduce stress, and reduce pain and inflammation. This essential oil has an uplifting scent that is also calming. It increases blood flow to help with inflammation, headaches, and muscle contractions. The citrusy smell helps to lift the mood and combat stress. Orange essential oil is a beneficial oil to add to your own collection.