An article by Robert Todd Carroll highlights that many claims of efficacy are testimonials and anecdotal in nature.
Examination of the claims of aromatherapy, published by the Skeptical Inquirer.
Anya McCoy looks at aromatherapy from both sides, and presents information and warnings about the con artists of the aromatherapy business.
Stephen Barrett, M.D. on some of the dubious claims by companies in the aromatherapy business.
Article on aromatherapy from Priorities, a publication of the American Council on Science and Health.