Essence of Thyme | College of Holistic Studies

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Essence of Thyme College of Holistic Studies Ltd.

The Gold Standard for Aromatherapy Certification

We uniquely prepare you to make a difference in the field of aromatherapy with advanced programs that help you create a successful, fulfilling career by specializing and creating your market niche. Our world-renowned faculty has decades of combined aromatherapy experience, so you are in expert hands. Our focus goes beyond basic training and branches into global awareness, anatomy & physiology, safety, sustainability, chemistry, botany, and more.

Meet the Instructors

Online Aromatherapy Certification Programs

Create or advance your career in aromatherapy with our internationally recognized, evidence-based aromatherapy certification and diploma programs. 

Professional Level Certification Program

Your career starts here. Become a professional aromatherapy consultant, launch your product line or retail business, teach workshops, or provide services as an adjunct to your existing holistic health specialization.


Certified Master Aromatherapist Program

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


The Gold Standard: Advanced Diploma in Aromatherapy

Our best bundle for the serious student seeking the most comprehensive training available. Includes the Professional Level Certification Program and the Certified Master Aromatherapist Program, granting you a Diploma in Advanced Aromatherapy.


Our programs are recognized by the top 4 International Professional Aromatherapy Associations

IFPA Accredited - Essence of Thyme

"My journey into aromatherapy began a few years ago with a simple tattoo of great symbolism – Breathe – and with the hope to self-heal myself.

When I was introduced to essential oils and experienced the healing powers of the plant world, I knew that I had found my passion. I decided to work towards aromatherapy certification and learn more about the healing properties of essential oils to intelligently and safely share my knowledge to help others.

After 6 months of researching schools I chose the Essence of Thyme College of Holistic Studies and it was one of the best decisions that I made in my life."

— Mary Monteiro

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Yvonne Brodka

Yvonne Brodka

Taking the Essence of Thyme aromatherapy program was one of the best decisions of my life. I’ve always had a love for essential oils and when I found the Essence of Thyme online course I knew it was time to start my journey into the world of holistic medicine. 

Both Colleen Thompson and Kelly Ablard are fantastic teachers that have extensive aromatherapy knowledge and who care deeply about their students. 

I highly recommend this program to anyone interested in learning or furthering their education in aromatherapy.