Clinical Studies on Aromatherapy

Aromatherapy is increasingly supported by clinical research. While the evidence base continues to grow, several areas already have strong scientific support.

Areas with Strong Evidence

Anxiety and Stress

Multiple randomized controlled trials (RCTs) demonstrate that lavender inhalation reduces anxiety scores, cortisol levels, and vital signs associated with stress.

Headaches

Peppermint oil (10% solution) applied topically was shown to be equivalent to 1,000 mg acetaminophen for tension headaches (Gobel et al., 1996).

Nausea

Ginger and peppermint inhalation have been studied for post-operative nausea, pregnancy-related nausea, and chemotherapy-induced nausea with positive results.

Sleep Quality

Lavender diffusion improved sleep quality in multiple clinical settings, including ICU patients, elderly adults, and college students.

Hair Growth

Rosemary oil was shown to be as effective as 2% minoxidil for androgenetic alopecia in a 6-month RCT (Panahi et al., 2015).

Limitations