Aromatherapy linked to improved sleep and reduced anxiety in menopause

The analysis also found associations with reduced overall menopausal symptoms (standardised mean difference -1.00), vasomotor symptoms like hot flashes (SMD -0.79), anxiety (SMD -0.63), and depression (SMD -0.57). Aromatherapy massage appeared to produce larger effects than inhalation alone. However, the GRADE certainty rating for sleep quality was 'Very Low' due to substantial heterogeneity across studies—they used different essential oils, doses, durations, and delivery methods, making direct comparison difficult. The authors note that methodological limitations were common and only a few studies reported adverse events, so safety data remain sparse. The authors concluded that while aromatherapy "may be a beneficial complementary therapy," firm clinical recommendations cannot yet be made without larger, more rigorous, standardised trials.

The effect sizes here are moderately large (SMD around -0.6 to -1.0 suggests clinically meaningful shifts), comparable to some psychological interventions but notably smaller than hormone replacement therapy for vasomotor symptoms. Subgroup data showed massage delivery outperformed passive inhalation, hinting that the tactile component—relaxation, attention, skin stimulation—may amplify benefit beyond the aromatic compounds alone. The heterogeneity is substantial: studies mixed lavender, rose, geranium, and other oils; some used 2–4 week interventions, others 12 weeks; some combined aromatherapy with counselling. The lack of robust adverse event reporting is a real gap—essential oils can interact with medications and trigger allergic reactions in some users. The 'Very Low' certainty for sleep and 'Low' for anxiety reflects these design weaknesses, not absence of effect.