Grapefruit essential oil has a bright, citrus-sweet aroma that is uplifting and purifying. Diffusing this oil promotes clean, fresh air, while a couple drops in your cleaning products can aid in keeping surfaces clean. The oil may also promote circulation and the appearance of tighter, smoother skin when applied in a salt scrub or with dry brushing. Always dilute at less than 1% for topical use to avoid a photosensitive reaction.