This study tested whether inhaling cang-ai volatile oil (mugwort oil) for one hour daily could help ease depression. 60 people with depression were randomly assigned to receive either mugwort oil or bergamot oil. Researchers used brain imaging and depression questionnaires to mea…
Phase: NA • Sponsor: Dongdong Qin • Aim: Symptom relief
Last updated Jun 27, 2026 09:01 UTC