- Accredited Diploma
Learn the science and art behind aromatherapy. In this advanced diploma program, you’ll explore essential oils — their botanical origins, chemistry, and therapeutic uses for health and wellness. You’ll also study anatomy and physiology while learning how aromatherapy connects with herbal studies, nutrition, and other integrative wellness practices. Along the way, you’ll gain skills you can apply professionally, including how to start and manage your own aromatherapy business.
Top-Tier Accreditation
Meet the education standards set by the National Association for Holistic Aromatherapy for Level 3: NAHA Certified Clinical Aromatherapist (NCCA)® membership.*
Professional Credentials
Prepare to sit for the national registration exam through the Aromatherapy Registration Council and pursue the Registered Aromatherapist (RA) credential.
Meet Global Standards
Meet the curriculum requirements of the Alliance of International Aromatherapists’ Advanced Practitioner Aromatherapy education standards.
Proven Graduate Success
Build confidence with a program where graduates achieved an 88% pass rate on the Aromatherapy Registration Council National Exam (2019–2023), leading to registration as a Registered Aromatherapist.
Professional Pathways & Credentialing
Aromatherapy Registration Council (ARC)
Aligned with AHG’s mission to promote clinical herbalism, ACHS programs prepare graduates with the knowledge and training needed for professional membership eligibility.
National Association for Holistic Aromatherapy (NAHA)
Approved by NANP to prove that graduates have completed a rigorous curriculum designed to prepare them for professional practice and eligibility to sit for the Holistic Nutrition Board Exam.
Alliance of International Aromatherapists (AIA)
Recognized by AIA for advancing aromatherapy education that meets professional standards and supports graduates in pursuing careers as skilled, ethical practitioners.
Free Aromatherapy eBook: Essential Oils for Everyday Wellness
Download our free Aromatherapy eBook to learn the best oils for everyday use, safety tips, and how to start using aromatherapy in your wellness routine.
Required Courses
The 27-credit program provides a strong foundation in integrative health and wellness. You’ll study essential oils, anatomy and physiology, plus practical business skills to prepare you for a professional career in holistic wellness.
Required Courses
Learning Outcomes
- Understand the history, theories, and practices of aromatherapy, including essential oil extraction and quality assessment.
- Communicate anatomy, physiology, and medical terminology in professional aromatherapy practice.
- Evaluate essential oils to create safe and effective blends, considering their aroma, therapeutic effects, and how they work in the body.
- Identify essential oil properties, interactions, and safe methods of use to develop evidence-based formulations.
- Write case studies and literature reviews to contribute to the professional field of aromatherapy.
- Apply client intake, assessment, and aromatherapy protocols to design personalized wellness plans.
- Build and manage an aromatherapy business, including record keeping, ethics, legal requirements, marketing, and networking.
Admissions Requirements
Here’s what you’ll need to do to get started:
Step 1: Request your transcripts.
Provide high school diploma or self-certification of completion with College transcripts.
Step 2: Apply Online
Complete and submit your application online to begin the admissions process.
Step 3: Achieve Acceptance for Admission
A recommendation by the Admissions Committee is required. Review and sign your Academic Plan and Enrollment Agreement once accepted.
Step 4: Confirm Your Funding
Work with the ACHS team to finalize your funding, including payment plans, tuition assistance or military benefits, or financial aid for those who qualify. Learn more.
Step 5: Complete Orientation
Discover ACHS’s learning and support resources to guide you throughout your studies.
Applicable for all programs except the following certificates: Nature’s Remedies: Crafting Aromatherapy, Herbal, and Nutritional Solutions for a Healthier Family and Community and Holistic Approaches to Mental Health: Essential Oils, Herbs, and Nutrition.
*Graduates must also complete a college-level pathophysiology course.
Apply Your Education in Real-World Settings
Whether you want to start a new career or expand your current practice, this diploma prepares you to apply aromatherapy in real-world settings. You’ll gain hands-on skills in blending, client care, and wellness planning, along with the tools to build and grow your own holistic business.
Graduates of this program often pursue a variety of roles in the health and wellness field, including:
Registered Aromatherapist (RA)
Consultant or Aromatologist
Aromatherapist
Aromatherapy Product Formulator & Manufacturer
Plan Your Aromatherapy Path With an Advisor
Talk through your goals with an advisor who’s ready to guide you every step of the way.
Tuition and Financial Aid
You can estimate your total tuition and fees by clicking on each required course below to view all associated costs. Tuition and fees are subject to change. Explore options to reduce costs through credit transfers, challenge exams, and eTextbooks here. Financial aid opportunities are also available. Here’s a look at the projected maximum cost for the Diploma in Aromatherapy, Master Aromatherapist program.
$17,718
Estimated Total
$200
Registration Fee
$11,475
Tuition
$5,993
Books and Supplies
$50
Graduation Fee
This estimate includes all textbooks, materials, and the online ACHS eTextbook. It reflects the courses with the greatest out-of-pocket costs and is based on 2025–2026 tuition rates. Actual costs may be lower if you qualify for transfer credit, pass a challenge exam, or opt for eBook options.
The Value of Accreditation
ACHS is accredited by the Distance Education Accrediting Commission (DEAC), which is recognized by the U.S. Department of Education and the Council for Higher Education Accreditation. This ensures that your aromatherapy education meets rigorous academic and industry standards — adding value to your credentials and advancing your ability to support others with confidence.
FAQs
How do I become a registered aromatherapist?
To become a registered aromatherapist, complete a qualified aromatherapy program, meet eligibility requirements, and apply to take the national exam through the Aromatherapy Registration Council. After passing the exam, you’ll earn the Registered Aromatherapist (RA) credential.
What will I learn in an online aromatherapy course?
An online aromatherapy program should focus on how to use essential oils safely and effectively, including how to select, blend, and apply them for health and wellness. At ACHS, aromatherapy education also covers essential oil chemistry, therapeutic properties, and the basics of anatomy and physiology. You’ll gain practical skills you can use in real-world settings, from creating personalized blends to supporting client wellness routines.
Can I start an aromatherapy business after this program?
Yes, ACHS includes business training to help graduates start and manage an aromatherapy practice, covering essentials like marketing, client care, recordkeeping, and legal considerations. You’ll graduate with practical tools and a clear understanding of how to build a professional, ethical, and sustainable aromatherapy business.
What can I do with an aromatherapy diploma?
An aromatherapy diploma can lead to careers in holistic wellness, including private practice, spa settings, and wellness coaching, or allow you to add aromatherapy services to an existing healthcare or wellness role. You can work directly with clients, create custom blends, or incorporate aromatherapy into services such as massage, skincare, or integrative health coaching.
Ready To Turn Your Passion Into a Profession?
Apply now, or speak to one of our expert advisors.