Aromatherapy Certification
Become a Certified Aromatherapist with our 250-hour NAHA-approved program — taught by Demetria Clark, clinical herbalist and aromatherapist with 25+ years of experience.
This self-paced course begins as soon as you enroll, and you will receive excellent support along with high-quality learning materials.
Don’t miss out on this opportunity!
Is This Aromatherapy Certification Right for You?
You will love this program if you are:
- A wellness practitioner — massage therapist, doula, esthetician, energy worker — who wants to safely add essential oils to your practice
- Nurse, midwife, or healthcare professional looking for evidence-aligned aromatherapy training that respects clinical safety
- An herbalist who wants to integrate essential oils into their formulations
- Someone preparing to launch an aromatherapy consulting practice, product line, or teaching career
- A serious self-learner who wants to use essential oils for their family with the same care a professional would
You do not need a science background. You need curiosity, a willingness to study, and respect for the plants. I will teach you the rest.
NAHA Approved · AHG Aligned · Teaching Since 2000 · 250+ Hours · Self-Paced Online
25+ years teaching plant medicine
Since 2000 training certified aromatherapists
NAHA Approved Level 1 program
Thousands of graduates worldwide
“Demetria’s program gave me the depth I needed to feel truly confident with clients. The chemistry and safety training is unmatched.”
— [Anne 2012]
“I’ve taken three certifications. This is the one that actually prepared me to practice. The recipes alone are worth the tuition.”
— [Ellie, 2019]
“I went from hobbyist to running my own consulting practice in under a year. The business and ethics modules made the difference.”
— [Michael, 2025]
What You Will Be Able to Do as a Certified Aromatherapist
By the time you complete your certification, you will be able to:
- Identify, source, and safely use over 40 essential oils by both common and Latin botanical name
- Evaluate essential oil quality using GC/MS reports, distillation method, and supplier transparency
- Understand essential oil chemistry — monoterpenes, esters, phenols, oxides, ketones, aldehydes — and what each chemical family means for safety and therapeutic action
- Master distillation and extraction methods including steam distillation, hydrodistillation, cold expression, solvent extraction, supercritical CO₂, and enfleurage
- Select and use carrier oils like jojoba, sweet almond, rosehip seed, fractionated coconut, calendula-infused oil, and more
- Calculate safe dilutions for adults, children, elders, pregnancy, and acute versus chronic applications
- Recognize contraindications including phototoxicity, sensitization, methyl salicylate cautions, 1,8-cineole pediatric concerns, and estrogen-sensitive considerations
- Apply aromatherapy anatomy — the olfactory pathway to the limbic system, dermal absorption, and hepatic metabolism — to understand how essential oils actually work in the body
- Formulate for real needs — skin and hair, emotional support, respiratory wellness, sleep, stress, first aid, and more
- Practice ethically and professionally with strong client intake skills, scope of practice clarity, and a foundation for building a consulting business
This is the depth that separates a Certified Aromatherapist from someone who simply uses essential oils at home.
Ready to Begin?
Enroll today, and you will be in the classroom within minutes. Self-paced, NAHA-approved, and supported every step of the way.
$595.00
3 payments of $216.00
Aromatherapy Certification- What will I learn?
Inside the Aromatherapy Certification Curriculum
7 Modules and 23 lessons, delivered in our online classroom. At your own pace, education that covers the following and so much more.
Foundations of Aromatherapy: Welcome and orientation, course policies, and the Student Handbook for Success. The history of aromatherapy and scent in healing — separating marketing myths from documented record. What essential oils actually are, where carrier oils come from, and an introduction to distillation. Benefits of essential oils. Essential oil safety, including pregnancy, birth, and postpartum. Aromatherapy terminology. How to use essential oils like a certified aromatherapist for both emotional and physical applications.
Aromatherapy Chemistry: The role of chemical constituents in clinical aromatherapy practice. Functional groups, therapeutic action, safety implications, and how to read a GC/MS report with a critical eye. Curated chemistry resources for ongoing study.
Botany for Aromatherapy: Plant families, Latin binomial nomenclature, and a complete list of essential oils organized by Latin name. Pronunciation guide so you can speak about your oils with the same confidence you blend them.
Aromatherapy Safety in Depth: Comprehensive safety guidelines, adverse reactions, essential oil profiles with full safety information, and pregnancy-specific protocols. Resources for ongoing safety study from peer-reviewed sources.
In Depth, Supportive Education.
Anatomy & Physiology for Aromatherapists A&P designed specifically for aromatherapy professionals. Anatomical overview, the limbic system and the olfactory pathway, anatomy of the skin and dermal absorption, and the professional terminology you need for client charts and consultations.
Blending, Dilution & Quality: How to blend essential oils for your client’s specific needs. Dilution charts you will reference for years. How to identify and source quality essential oils across price points. Tools of the trade for working aromatherapists.
Client Care, Ethics & Business Compassionate client support with dignity and respect. Aromatherapy ethics and scope of practice. Client intake forms and consultation flow. Practical business development for aromatherapy consultants.
Recipes, Formulations & Resources: Hundreds of essential oil recipes curated for safety and real-world use. First aid formulations. Stress and modern wellness recipes. The IFRA list, course glossary, and ongoing reference resources.
Upon enrollment, you get access to your online classroom. Inside you will find your study materials, lectures, resources, and additional materials to start you off on your path.
Demetria Clark- Director
I am Demetria Clark, founder and director of Heart of Herbs Herbal School and Birth Arts International. I am a clinical herbalist and aromatherapist with more than 25 years of experience, a published author, and a longtime advocate for accessible plant medicine education.
I have trained students at colleges and midwifery schools, at conferences, and in professional groups around the world. Heart of Herbs has been NAHA-approved and AHG-aligned, training certified aromatherapists and herbalists since 2000.
My teaching philosophy integrates deep scientific and phytochemical knowledge with respect for traditional plant wisdom and cultural humility. I believe plant medicine belongs to everyone — and I built this program to make sure the door stays open.
Credentials List
- Founder, Heart of Herbs Herbal School (since 2000)
- Founder, Birth Arts International
- NAHA Approved Educator
- Best-selling author
- 25+ years clinical practice
FAQ
Frequently Asked Questions About Aromatherapy Certification
Is this aromatherapy certification NAHA approved?
Yes. Our 250-hour Aromatherapy Certification is approved by the National Association for Holistic Aromatherapy and exceeds NAHA Level 1 educational requirements. Our herbal programs are also recognized by the American Herbalists Guild.
How long does it take to become a certified aromatherapist?
Most Heart of Herbs students complete the Aromatherapy Certification in six to twelve months while balancing work and family. The program is self-paced, so you can move faster or slower as life allows. There is no enrollment expiration.
Do I need a science or medical background to enroll?
No. The program teaches you essential oil chemistry, botany, and anatomy from the ground up. If you can read, study, and ask questions, you can succeed here.
What is the difference between this and the Clinical Aromatherapy Certification?
The 250-hour Aromatherapy Certification prepares you to work as a Certified Aromatherapist in consulting, retail, wellness, and small-practice settings, and meets NAHA Level 1 requirements. The Clinical Aromatherapy Certification is a separate, more advanced program for those formulating for complex health conditions or working alongside healthcare providers. You do not need to take this one before the clinical level.
Can I use this certification professionally?
Yes. Graduates work as aromatherapy consultants, product formulators, educators, and as part of integrative wellness practices. Many of our students own consulting businesses and product lines.
What kind of support do students receive?
Every student gets the same level of support regardless of program. You can reach me by phone, email, text, or through our active student group. We do not believe in leaving students to figure it out alone.
When can I enroll?
Anytime. There is no semester or cohort start date. Enroll today and you will be in the classroom within minutes.
What materials are included?
Your tuition includes 250+ hours of instruction, lectures, PDFs, printable references, recipe collections, dilution and safety charts, the full course glossary, and 24/7 classroom access. You will also receive coupons to Mountain Rose Herbs and Foster Farm Botanicals for sourcing your study oils.
Is the program online?
Yes. The entire program is delivered online. You can study from anywhere with an internet connection, on any schedule that works for you.
$595.00
3 payments of $216.00
Begin Your Aromatherapy Certification Today
Enroll now and gain instant access to your online classroom. Self-paced. NAHA approved. Backed by 25+ years of teaching experience and a community of students who have walked this path before you.