Essential oil grapefruit 10ml grapefruit essential oil is an orange-tinted, citrus-scented oil frequently used in aromatherapy. through a method known as cold-pressing, the oil is extracted from glands located in the peel of the grapefruit. grapefruit essential oil has distinct properties that may offer a variety of health benefits — including reduced blood pressure and stress levels. here are 6 benefits and uses of grapefruit essential oil. 1. may help reduce appetite 2. may promote weight loss 3. may help balance mood 4. antibacterial and antimicrobial effects 5. may help reduce stress and lower blood pressure 6. treat acne