The top-selling doTERRA essential oil, Lemon has multiple benefits and uses. Lemon is a powerful cleansing agent that purifies the air and surfaces, and can be used as a non-toxic cleaner throughout the home. When added to water, Lemon provides a refreshing and healthy boost throughout the day.* Lemon is frequently added to food to enhance the flavor of desserts and main dishes. Taken internally, Lemon provides cleansing and digestive benefits.* When diffused, Lemon has an uplifting aroma.