Study Aromatherapy Online

Make your aromatherapy goals happen with our internationally recognized range of programs including beginner, certification, and diploma.

Become a Certified Aromatherapist or Advance Your Certification


Advanced Aromatherapy Science: Ecology and Pharmacology of Essential Oils from the Plant to the Clinic 

International recognition for continuing education units: AIA, NAHA, CAOA, IFPA

Complete—and earn certificates for—the modules that are most relevant to your professional goals, or complete the entire 5-module program and earn a Diploma in Advanced Aromatherapy Science.

Explore the science, critical approaches, and methodology behind essential oil research, from the pharmacology of aromatic plants to the effects of essential oils on the human body, including the chemistry behind extraction, distillation, and quality of aromatic extracts. Develop the tools you need to go beyond knowledge and become an autonomous professional practitioner in your field.

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Professional Level Certification Program

300 HOURS | $1997 CAD

International recognition: AIA (Level 2), NAHA (Level 2), CAOA (Level 2), IFPA (Full Membership MIFPA)

Become a professional aromatherapy consultant, launch your own retail or wholesale business, create your own product line, teach workshops or webinars, or provide services as an adjunct to your existing holistic health specialization.

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Certified Master Aromatherapist Program

330 HOURS | $2197 CAD

International recognition: AIA (Level 3), NAHA (Level 3), CAOA (Level 3), IFPA (Full Membership MIFPA), NZROHA (Professional Member)

Prerequisite: Formal Level 2 certification in aromatherapy

Build on your existing Level 2 aromatherapy certification. Become a Certified Clinical Aromatherapist, aromatherapy educator, researcher, or enhance your work in allopathic or holistic health. Expand your business and share your work on a level in line with industry experts.

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Earn Your Diploma in Aromatherapy


The Gold Standard: Advanced Diploma in Aromatherapy

630 HOURS | $3800 CAD

International recognition: AIA (Level 3), NAHA (Level 3), CAOA (Level 3), IFPA (Full Membership MIFPA), NZROHA (Professional Member)

Our best bundle for the serious student who is seeking the most comprehensive aromatherapy certification training available. Includes both the Professional Level Certification Program and the Certified Master Aromatherapist Program. Your direct path to becoming a Certified Clinical Aromatherapist, also granting you certification as a Certified Aromatherapist, Certified Professional Aromatherapist, and Certified Master Aromatherapist.

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Diploma in Advanced Aromatherapy Science 

47 HOURS | $2715 CAD

International recognition for continuing education units: AIA, NAHA, CAOA, IFPA

In this 5-module program, you will explore the science, critical approaches, and methodology behind essential oil research. You’ll be introduced to the pharmacology of aromatic plants so you can interpret their therapeutic potentials. You will apply pharmacological concepts to deepen your understanding of the properties and effects of essential oils on the human body, and you will understand the chemistry behind extraction, distillation, and quality of aromatic extracts. This program takes no shortcuts and doesn’t offer ready-made solutions. Instead, you will develop the tools you need to go beyond knowledge and become an autonomous professional practitioner in your field.

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Angie Kennedy

Angie Kennedy

"Essence of Thyme College of Holistic Studies offers a well rounded program that incorporates all aspects of professional aromatherapy. The educators were so helpful with any questions that I had and the course material was compiled and expressed in an easily understandable format. I enjoyed this program so much and the knowledge gave me the confidence to move forward and help people with the power of essential oils."

Grace Ann Post

Grace Ann Post

"I was impressed with the quality of the learning modules and the intuitive flow in which they were presented. The support, student lectures and social media access are a great way to stay connected, keep up to date on the latest topics and research, as well as providing motivation to stay on track and be accountable with your studies. If you want to be empowered to help yourself and others on a path to holistic wellness, then look no further than EOT!"