Aniseed essential oil 

Essential oil of aniseed (Pimpinella anisum) is not usually among those that we select when  requiring an uplifting, antidepressive effect. We might think instead of essential oils such as lavender (Lavandula angustifolia), bergamot (Citrus bergamia) and sandalwood (Santalum spp.), all of which have shown beneficial effects in clinical trials on mood parameters...