Aromatherapy employs essential oils extracted from plants. The oils can be used in three ways: by direct application, bathing in water to which a few drops of the appropriate oil have been added, and inhalation.

When used in conjunction with Reiki, some oils can be applied directly on particular areas of the body, or their aroma can be made to fill the room using an aroma lamp. Below a few oils are considered and their use compared to their therapeutic value in aromatherapy.

In aromatherapy lavender is a tonic with relaxing effects. It is also an antiseptic, an antispasmodic and stimulates the appetite. It is also used for minor burns and wounds. Its soothing effects render it helpful for headaches, tension and similar conditions.

In Reiki, lavender is associated primarily with recipients who are sensitive and easily hurt. In long sessions of Reiki lavender helps to promote the calm and confidence necessary for a period of building and strengthening of the life force energy.

In aromatherapy, sandalwood oil is prized for its relaxing and antiseptic effects. It forms a very effective oil for application to the skin (especially facial), particularly for dry or sensitive skin.

Sandalwood oil produces an ambience conducive to the Reiki therapy because the oil is considered to elicit trust and confidence, between practitioner and recipient.

Clary sage is a tonic, antispasmodic, antidepressant, anti-inflammatory, bactericidal and more. It is also used to treat colds, menstrual problems and its very low toxicity renders it suitable for general use.

In a session of Reiki therapy, clary sage is used to open blocked channels and to enhance sensitivity.

Patchouli has some aphrodisiac qualities, and is also used to treat skin disorders and minor bums because of its anti-inflammatory and antiseptic qualities.

It is also used in Reiki therapy for allergies and impurities of the skin; but the fundamental use and aim is to enhance the sensual qualities and aspects of life.