Some of what Dr. Friedman had to say:
This study examined the effectiveness of essential oils in the treatment of ADHD diagnosed children from the ages of six to fourteen years.
Treatment outcome results reveal that the essential oil of Vetiver improves the brain activity and reduces the symptoms in ADHD diagnosed subjects. Similar results were found with the essential oil Cedarwood, although not statistically significant. This lack of significance could be the result of the relatively small number of subjects in this study. The Lavender group showed no apparent improvement after the treatment program.
In addition, I received several letters from parents of the ADHD children stating that their behavior at home had improved for the better. In several cases, they also stated that school educators informed them that their performance was observed to improve in the classroom. The report cards in some of the subjects had reflected this improvement as well. Since these results were not included in the design of the study, they will not be included here, but is only mentioned as an unexpected improvement in the treated ADHD diagnosed children.
In summary, based on this study, I would not hesitate to recommend the use of the essential oil Vetiver in the treatment of children diagnosed as having ADHD. I would even consider using the essential oil Cedarwood in situations where Vetiver was not available or other cases in which Vetiver was not appropriate.
Certainly, the essential oil Vetiver proved to be the treatment of choice between the three different oils used in this study
(link to the study)