Lavender (Lavandula angustifolia Miller)

• Lavender is native to the Mediterranean, the Arabian Peninsula, Russia, and Africa. It has been used cosmetically and medicinally throughout history. In modern times, lavender is cultivated around the world and the fragrant oils of its flowers are used in aromatherapy, baked goods, candles, cosmetics, detergents, jellies, massage oils, perfumes, powders, shampoo, soaps, and tea. English lavender (Lavandula angustifolia) is the most common species of lavender used, although other species are in use, including Lavandula burnamii, Lavandula dentate, Lavandula dhofarensis, Lavandula latifolia, and Lavandula stoechas.
• Many people find lavender aromatherapy to be relaxing and it has been reported to have anxiolytic (anti-anxiety) effects. Overall, the evidence suggests a small positive effect, although additional data from well-designed studies are required before the evidence can be considered strong.
• Lavender aromatherapy is also used as a hypnotic, although there is insufficient evidence in support of this use.
• Small Phase I human trials of the lavender constituent perillyl alcohol (POH) for cancer have suggested safety and tolerability, although efficacy has not been demonstrated.