Vetiver (Vetiveria zizanoides) has a heavy, earthy fragrance similar to patchouli with a touch of lemon. Vetiver oil is psychologically grounding, calming, and stabilizing. One of the oils that is highest in sesquiterpenes, vetiver was studied by Dr. Terry Friedmann for improving children's behavior. Vetiver may help when coping with stress and to recover from emotional trauma and shock. Vetiver has an approximate ORAC of 742,792 (TE/L). TE/L is expressed as micromole Trolox equivalent per liter.