Grapefruit essential oil is rich in the antioxidant d-limonene that it is nourishing to the skin. Limonene (d-limonene) is a powerful antioxidant found in the peels of citrus fruits such as grapefruit, orange, and lemon. Grapefruit essential oil helps to clear congested oily skin and acne while toning the skin and tissues. In addition, as with all citrus oils, it has an uplifting aroma which may help with anxiety and stress. Tangerine essential oil helps to maintain oil and moisture balance in the skin, help dry, cracked skin and has emollient properties as well.