HealthWatchlist verdict: Aromatherapy studies sometimes report improved depressive symptoms, but the evidence does not establish essential oils as a replacement for depression treatment. Recent controlled findings show why short-term mood changes and recovery from clinical depression must be kept separate.
Depression deserves proper support
Depression is a real health condition that can affect mood, interest, sleep and everyday functioning. Enjoying a scent does not make depression trivial, and not finding an oil helpful is not a failure to relax or think positively.
If you think you may be depressed, seek help from a GP or mental health professional. Oils should not delay assessment or lead you to stop prescribed treatment.
Urgent help: NHS guidance explains how to get immediate mental health support. In England, call 111 and select the mental health option for urgent help. Call 999 or go to A&E if you cannot keep yourself or someone else safe. Samaritans offers listening support on 116 123.
The positive pooled evidence
A 2023 meta-analysis combined 32 trial comparisons from 27 studies and found a moderate average reduction in depressive-symptom scores. The participants included several different clinical and life-stage groups.
That is a finding worth taking seriously. However, a symptom scale used during another illness does not necessarily identify people with a diagnosed depressive disorder. It also does not directly measure remission, relapse prevention or restored daily functioning.
The pooled result was not consistent across every population. The review did not find an effect in its pregnant or postpartum groups. A single average should not become a universal claim for every person or life stage.
Why reviews can disagree
One 2022 review in people with cancer found an anxiety benefit but no difference for depression. Another review in cancer populations reported favourable depression results while judging study quality low and noting that most comparisons were against usual care.
These reviews should be read together. Differences in included studies, delivery methods and comparisons can change a pooled estimate. They do not provide two independent sets of patients simply because they are two publications.
“Usual care” comparisons can also leave unequal attention between groups. A pleasant session with a practitioner may help someone feel supported, without proving that a particular volatile compound is responsible.
What newer controlled studies reveal
A 2026 lavender-inhalation trial in 56 people receiving treatment for substance dependence reported improved depression-scale scores after three days. The control group received routine care without a placebo aroma or matching attention.
The authors explicitly noted the immediate assessment, lack of follow-up and limitations of the control. This cannot establish a durable treatment for depression in the general population. Routine treatment continued alongside the aroma.
A recent rheumatoid-arthritis trial compared aromatherapy massage, placebo massage and a control group. Aromatherapy improved distress scores compared with the control group, but not significantly compared with placebo massage. The comparison weakens an oil-specific explanation.
Lavender and rose are not interchangeable evidence
A review of rose aromatherapy found benefits for some anxiety and sleep outcomes, but no statistically significant effect on depressive symptoms. An oil can have a promising result for one outcome without supporting a different claim.
A 2026 scoping review of olfactory training and aromatherapy found that many studies reported improvement, but not consistently more improvement than controls. Some results were only changes within the treated group.
A before-and-after improvement is particularly difficult to interpret when symptoms fluctuate, participants receive other treatment or enrol when they feel unusually unwell. The control group’s change is central to understanding the result.
| Outcome | What to ask |
|---|---|
| Feeling calmer after a session | Was this measured as relaxation, anxiety or depression? |
| A lower questionnaire score | Was it better than a suitable comparison, and did it last? |
| A claim to treat depression | Were diagnosed patients studied with meaningful clinical outcomes? |
| A claim to replace medication | Was replacement actually tested? These studies do not establish it. |
A sensible role for personal preference
A familiar fragrance may be enjoyable as part of a daily routine. That personal preference can be respected without assigning it an antidepressant effect that has not been established.
NCCIH distinguishes lavender preparations and the different evidence supporting them. Research on a specific oral lavender product is not evidence for swallowing an aromatherapy oil. Do not make medication changes on the strength of a scented-product claim.
Depression care may include talking therapies, practical support and medicine, depending on the person’s circumstances. Discussing preferences with a clinician can help make a plan manageable while retaining treatments with a clearer clinical basis.
Conclusion
There is enough research to justify continued investigation of aromatherapy as supportive care. There is not a dependable basis for describing essential oils as a substitute for depression treatment or for promising lasting recovery from a scent.
How this review was researched
Research checked on 13 September 2026. We searched PubMed for the named oils or preparations and the condition, followed relevant review references, and checked the official guidance linked below. This is an editorial review, not an exhaustive systematic review. We distinguish human treatment outcomes from laboratory findings, and identify where a study tested a mixture or a different preparation.
Related reading
References
- Effects of aromatherapy on depression: A meta-analysis of randomized controlled trials.
- The Effects of Aromatherapy on Anxiety and Depression in People With Cancer: A Systematic Review and Meta-Analysis.
- Aromatherapy with inhalation can effectively improve the anxiety and depression of cancer patients: A meta-analysis.
- Effects of Lavender Inhalation Aromatherapy on Depression in Individuals Undergoing Drug Treatment for Substance Dependence: A Randomized Clinical Trial.
- Aromatherapy Massage Reduces Psychological Distress in Rheumatoid Arthritis: A Randomized Controlled Trial.
- The effects of Rosa damascene aromatherapy on mood and sleep: a systematic review and meta-analysis.
- Olfactory Training and Aromatherapy for Treating Depressive Symptomatology: A Scoping Review.
- NHS: Depression in adults
- NHS: Where to get urgent help for mental health
- NCCIH: Lavender