It’s your time to turn “someday” into reality.

Make 2023 your year! The gifts of aromatherapy extend far beyond the holiday season when you become an essential oil expert. 

15% OFF



expires January 12, 2023


We know firsthand how aromatherapy certification can change your life… and how you can change the lives of others.

Since 2012, Essence of Thyme has set the Gold Standard for aromatherapy certification through credibility, connection, and career preparation so you can:

  • become a leader in the field of aromatherapy with our internationally recognized, evidence-based aromatherapy certification programs.
  • create or advance your career as an aromatherapy consultant, practitioner, teacher, or business owner.
  • get unparalleled personal support including 1:1 advising, live guest lectures, our private student forum, and regular interactive online events.
  • build your future now with discounts on Airmid Institute membership, LabAroma and Blend Precisely, and lifetime access to our expert lecture archive.

Whatever your current level of essential oil knowledge, we have a certification program to help you make your goals a reality.

Expires January 12, 2023. Don’t miss this limited-time opportunity. Register now and save!

Professional Level Certification Program

Go from beginner to professional with this comprehensive, evidence-based program. Become an 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.


Certified Master Aromatherapist Program

Take your existing Level 2 aromatherapy certification to the next level. 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.


The Gold Standard: Advanced Diploma in Aromatherapy

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


Can’t wait to get started blending?

The “Thyme to Blend” Aromatherapy Recipe Bundle — Vol. 1
Just $14.97 CAD

  • Get every recipe from our 2022 newsletter collection in one convenient place, plus bonus recipes you won’t find anywhere else.
  • Learn how to make blends that support you all year: diffusers, inhalers, potpourri, lotion, bath bombs, and more!
  • Create your own handmade gifts with beautiful, trusted recipes from our founders and team of aromatherapy experts.
  • Includes 16 recipes with safety information, a detailed dilution chart, and clear suggestions for use.

Instant download, delivered to your inbox.


Lead Instructors

You'll have hands-on support from our founders, Colleen and Kelly, who have decades of combined experience in education, research, sustainability, and the business of aromatherapy.

Colleen Thompson, RA

Colleen Thompson, Cert Ed, MIFPA, RA®, EOT®, CA


Colleen has worked in the field of aromatherapy since 1995. She registered her business, Essence of Thyme Ltd., in 1996 and has been a Registered Aromatherapist since 1997. In 1996, she opened her first aromatherapy store and over the course of 12 years owned three aromatherapy stores, a holistic spa, and chaired the Spa Program at West Coast College of Massage Therapy. Colleen is Past President of the Canadian Alliance Of Aromatherapy (CAOA), and serves on the Alliance of International Aromatherapists (AIA) Board of Directors. She is also the chair of the AIA Education Committee. Colleen also carries diplomas in Business Management and Marketing, Accounting, and Adult Education and attended the University of British Columbia Executive Education Program.

Kelly Ablard, PhD, RA®, EOT®, MIFPA


Kelly is a certified Conservation Aromatherapist™, and holds a PhD in Biology and an MSc in Conservation. As founder and CEO of Airmid Institute, she is dedicated to global education, research, and conservation of medicinal and aromatic plants. Kelly is a global speaker and author, who published on topics such as ethnobotany, chemical ecology, behavioral ecology, evolutionary biology, and sustainability. Kelly received the BCAOA Achievement of Excellence Award and has been awarded multiple grants for her global research. She served over a decade on the CAOA (formerly BCAOA) Board, a term with the UpS, and was a Co-founder of the International Committee on Sustainability of Aromatic Plants and Essential Oils Used in Aromatherapy and Natural Perfumery.

Expert Faculty

Essence of Thyme's faculty includes internationally acclaimed aromatherapy experts in diverse areas of specialization to help you focus your career goals. We bring these experts — and the experience of learning from them — directly to you, in exclusive lesson content you won't find anywhere else.

Ann Harman

hydrosols and their chemistry

Dr. Florian Birkmayer

psychoneuroimmunology; aromatherapy and substance use/abuse 

Madeleine Kerkhof

therapeutics and usage of CO2 extracts

Meet one of our recent graduates 

Your aromatherapy education can transform your life in ways you never imagined! 

Oana began her journey as many of us do — following her passion for essential oils, making blends for herself and her family, but unsure where to learn accurate information from credible experts. Where it took her was a surprise, even to her!


Don’t forget!

Use discount code YOURYEAR23 at checkout and save 15% on our internationally recognized aromatherapy certification programs!

Offer applies only to certification & diploma programs, including payment plans. 

Expires January 12, 2023.

Karina Langevin EOT Student

Karina Langevin

“Bonuses of being a student are: there is someone available to help out with ANY questions, tutoring options and the monthly lectures are a bonus to gain extra knowledge in the Aromatherapy field.”

Marina Khoury EOT Student

Marina Khoury

“After several searches and contacts with other schools, which did not convince me at all (lack of rigor and credibility), EOT was the one that won me over with its personalized, honest and very professional approach led by Colleen and Kelly. ”

Margaret MacLellan EOT Student

Margaret MacLellan

“I am very pleased with my decision to attend Essence of Thyme College of Holistic Studies and look forward to being able to continue to learn and help others through the safe and effective use of essential oils and aromatherapy."

Frequently Asked Questions

Got additional questions? 

We'd love to talk to you personally! Just click "contact us" to send us a message.