Aromatherapy Diploma with two modules that may be completed through self-paced home study. Located in Victoria, B.C.

Offers a program with three levels of aromatherapy courses, covering an introduction to essential oils, formulation, and treatment. Located in Springville, Utah.

This UK based school offers a basic course and an Advanced Aromatherapy Diploma.

Offers nationally accredited distance education certification courses in aromatherapy and many other areas of alternative healthcare. Located in Portland, Oregon.

Provides a six-week introductory course through e-mail. Based in Hawi, Hawaii.

Offers a self-paced home study course with 24 lessons and a final exam and project. Based in Saugatuck, Michigan.

Several CEU home study classes are presented, including a 40-hour Aromatherapy Essentials course.

Options include four different courses, and a 300-hour diploma program, all available through home study. Based in Marina Del Rey, California.

Three home study courses are offered, covering basic to advanced topics. Based in British Columbia, Canada.

Offers Advanced Clinical Aromatherapy through distance learning, a three-level research-based course that combines both French and English methods.