Orange essential oil works best to alleviate anxiety. A study done found that during labor women were less anxious after inhaling the fumes from the orange oil. It is also believed that it can help with Post Traumatic Stress Disorder. The oil can be used with an aromatherapy diffuser or vaporizer and mixed with a carrier oil to cut its strength before inhaling directly.
Rosemary oil is very good for brain activity improvement, which is benficial for handling tasks that require mental efficiency. It can also reduce fatigue and increase your energy levels when inhaled. Many people have found inhaling the oil to help with creating a feeling of revigoration. Simply use a vaporizer, inhale directly or apply to skin if necessary.
Cinnamon oil is know to help improve your ability to focus as it helps the brain to function better. Studies done on drivers have proven that after inhaling cinnamon oil they become alert and focused with the task at hand. The oil with keep you from getting annoyed and help you concentrate. Best used by inhalation either with a vaporizer or by putting a few drops on a cloth.
Lemon oil is very good for mood improvement and in comparison to other oils works way better than lavender oil. The best approach is through aromatherapy which works well via a humidifier or by inhaling using a cloth that has a few drops. Since it helps with moods the oil helps with stress and anxiety.