Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Fragrance, particularly in the form of essential oils and aromatherapy, has some scientific evidence supporting its use as an adjunctive therapy for depression. Aromatherapy involves inhaling the scent of essential oils extracted from plants, and it is believed to influence mood and emotional well-being. Several small-scale clinical studies and systematic reviews suggest that certain fragrances, such as lavender, bergamot, and rose, may have mild antidepressant effects. The proposed mechanisms include stimulation of the olfactory system, which connects to the limbic system—an area of the brain involved in emotion regulation. Some randomized controlled trials have demonstrated modest improvements in depressive symptoms when aromatherapy is used alongside conventional treatments.

However, the evidence base remains limited. Many studies have small sample sizes, short durations, and methodological weaknesses, such as lack of blinding or placebo controls. As a result, major psychiatric and medical organizations do not recommend fragrance or aromatherapy as stand-alone treatments for depression. Instead, they may be considered complementary therapies that could help improve mood or reduce anxiety for some individuals. Overall, while there is some scientific support, the evidence is not robust, and further high-quality research is needed to establish efficacy and optimal use.

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