This course is now full.
My next aromatherapy certification course will be opening for enrollment in January 2026. If interested, join the waitlist below.
Qualify to become a NAHA Certified Level 1 Aromatherapist with this comprehensive course. Expand your knowledge and gain a thorough understanding of the science of essential oils and how to use them personally and professionally.
Are you searching for information you can trust on how to use essential oils confidently?
Would you like to feel empowered to use aromatherapy safely and effectively for yourself, family, friends and clients?
Through this interactive, evidence-based, comprehensive course I will be providing you with the highest-quality aromatherapy education so you can feel 100% confident using essential oils safely to promote health and healing. After completion of this course, you will qualify to become a Level 1 Certified Aromatherapist through the National Association of Holistic Aromatherapy and receive a certificate from The School For Aromatic Studies which is one of the leading aromatherapy schools in the world.
I only teach two aromatherapy certification courses a year. My next course will be opening for enrollment in January 2026. If interested, join the waitlist below.
A clear understanding of how and why essential oils work to support the mind and body.
The history of aromatherapy and its modern development in evidence-based research.
The origins and purpose of essential oils within the plant.
How essential oils are produced and key elements in identifying quality.
The science behind essential oils, including how the chemistry of an essential oil supports its therapeutic properties.
All about the amazing sense of smell and how it can transform emotions and well-being.
How to formulate and blend essential oils to create a variety of aromatherapy-based products.
A common-sense approach to safety with essential oils.
All about 26 essential oils, including Latin binomial, safety information for each oil, plus the therapeutic and/or energetic properties of each individual essential oil.
An online 15-week Foundations Level 1 Aromatherapy Certification Program
Weekly live streaming classes with students from all over the world. (If you are unable to attend live, they will be recorded and available for you in the online platform.)
Unlimited lifetime access to all course materials and video content
A hardcopy and digital copy of the comprehensive foundation course manual
Downloadable and printable worksheets and guides
In-depth education on 26 commonly used essential oil monographs, the science of aromatherapy, aromatic chemistry, emotions, skin care and more!
Confidence in learning through 10 course modules and fun activities to reinforce learning.
Dozens of safe and effective aromatherapy recipes and blends to use when creating products.
Flexibility to learn through the course on your own time anywhere in the world.
AND
Free access to any online classes and webinars I personally teach for the duration of 2025.
A hardcopy of the comprehensive foundation course manual, methods of application manual and essential oil monograph manual.
A hardcopy easy-to-use guide with how to make your own aromatherapy products.
Foundations Level 1 Course Outline
Introduction
Plants and Essential Oils
Exploring 24 Essential Oils
Essential Phytochemistry
Aromatherapy and the Skin
Our Sense of Smell
Methods of Application
Blending and Consultations
Aromatics in Health
The Business of Aromatherapy
Completion
FALL CLASS ENROLLMENT IS NOW CLOSED! MY NEXT CLASS WILL BE IN JANUARY 2026.
Payments accepted as a one-time payment or 4 monthly payments.
*Course includes hardcopy and digital copies of course textbooks.
Additional class supplies not included.
For a complete listing of class supply list click below.
Aromatherapy Course Supply List.pdf 140.9 KB
Holly Brandenberger
If you're ready to feel empowered and confident around essential oils & holistic health then you're in the right place!
I'm Holly, Registered Nurse and Certified Aromatherapist living near Seattle, Washington on my family farm. I received my Bachelor’s of Science in Nursing in 2006 from Marquette University and have worked in a variety of nursing specialties including trauma,burns, post-surgical, endoscopy and hospital administration. I discovered aromatherapy in 2015 and loved how aromatherapy can strengthen the mind-body connection and initiate a relaxation response. I became certified through the School for Aromatic Studies and have been expanding my education ever since through specialized courses in utilizing aromatics for stress, trauma, and emotional wellbeing. I am also Certified in Aromapsychology.
I am the founder of Science of Essentials, an online resource that provides education worldwide regarding aromatherapy and holistic health. I currently am working with hospital systems bringing aromatherapy to the bedside to help support patients. My sincerest desire is to bless others with the knowledge I have gained through combining my education in modern medicine and holistic health.
Yes. The Foundations of Aromatherapy certification program is an online 15-week course designed in cohort learning to help keep you inspired and motivated to complete your certification by mid-December, just in time for the holidays.
With that said, we understand that "life happens" and all live streamed classes will be recorded for you to watch when it is convenient for you. You can also complete the course on your own time and based upon your own schedule and goals.
Online learning is makes learning easy and accessible. With online education you can take your course with you on any device you choose. Download pdf files to read later, watch video content, or view course content on your device.
This course officially starts the week of September 1st, 2025.
Starting September 3rd, the live streaming classes will take place every Wednesday from 11:00-1:00pm PST. There will be an optional 30-minute Q&A session at the end of every class. The last live streaming class will take place on December 10th.
If you are unable to attend live, all classes will be recorded and available for you to watch on the online platform. All classes and recordings do have subtitles.
*If there is a popular request for me to host further classes to answer questions or dive deeper into a specific topic or host a class on a weekend, I am flexible, and my greatest desire is to help you further your knowledge and passion for aromatherapy.
Since this is a cohort learning program, our goal is to have you complete the program by January 1st. However, you are free to take as long as you need!
Access to weekly live streaming classes with students all over the world
Unlimited lifetime access to all course materials and video content
A hardcopy of the comprehensive foundation course manual, methods of application manual and essential oil monograph manual. (This will be mailed to you shortly after enrollment.)
Bonus hardcopy of the product recipe guide
Downloadable and printable worksheets and guides
Dozens of safe and effective aromatherapy recipes and blends to use when creating products
In-depth education on 26 commonly used essential oil monographs, the science of aromatherapy, aromatic chemistry, emotions, skin care and more!
Free access to any online classes and webinars I personally teach for the duration of 2025
All students in the program will also gain free access to any additional classes and webinars I teach in the duration of 2024. (I typically host 1-2 classes a month). After enrollment, you will receive an email with information on how to gain access to additional classes to help expand your knowledge on a variety of aromatherapy and holistic health topics.
Yes! Upon completion of the Foundations of Aromatherapy Certificate program, you will be able to join as a Level 1 Certified Aromatherapist.
Yes! Students from all over the world are welcome to take this course. All course material is in English. In the past, we have had students join from over 30 different countries all over the world. All live classes and recordings do have subtitles.