A perennial herb that contains coumarins—e.g., coumarin and umbelliferone, flavonoids, tannins, triterpenoids, and volatile oils. Lavender is said to have antibacterial, carminative and sedative effects
The 2017 research, published in the Journal of Clinical Diagnosis Research, compared the effect of Lavandula officinalis and Venlafaxine in treating these patients with either mild or moderate depression over a six-month period.
For example, inhalation of lavender oil containing 35.35% linalyl acetate as its main component relieved migraine headaches ; inhalation of neroli oil containing 19.5% linalyl acetate  and inhalation of Lavandula hybrida Reverchon cv.
As lavender oil has been shown to have acetylcholinesterase inhibitory, neuroprotective (from glutamate-induced toxicity) and antioxidant properties (perhaps attributed to constituent such as linalool and linalyl acetate), they chose to use extracts of Lavandula angustifolia ssp.