Citronella’s bright, fresh aroma is nourishing to the spirit. It is also stimulating to the cardiovascular system. Citronella increases the heart rate when it is abnormally low. The aroma of citronella is recognized around the world as an insect repellent. Citronella can be used safely as an antiseptic to sanitize and deodorize surfaces being used in food preparation. Citronella oil is used for colds, flu, fatigue, headaches, migraines, and neuralgia.