According to the principles of aromatherapy, breathing in the scent of lavender essential oil or applying lavender essential oil to the skin transmits messages to the limbic system (a brain region known to influence the nervous system and help regulate emotion). Proponents suggest that lavender essential oil may help alleviate anxiety in part by inducing a calming effect on the central nervous system. One popular approach involves combining lavender oil with a carrier oil (such as jojoba or sweet almond). Once blended with a carrier oil, lavender essential oil can be massaged into your skin or added to your bath. You can also sprinkle a few drops of lavender essential oil onto a cloth or tissue and inhale its aroma, or add the oil to an aromatherapy diffuser or vaporizer. Here are some tips for purchasing lavender and other essential oils.