Orange oil is obtained from the peel of the orange. It contains a lot of vitamin C, which stimulates the production of collagen and can make the skin firmer and more elastic. It also has antibacterial and anti-inflammatory properties that can help treat acne or other skin blemishes. It promotes lymphatic flow and therefore has a decongestant effect. Orange oil has an invigorating yet relaxing effect on the senses and can help reduce stress, improve mood and increase energy.