Imagine a career that lets you express yourself spiritually and creatively, while bringing balance and wellness to others. Aromatic plant healing, the practice of aromatherapy, does just that. Becoming a professional aromatherapist can be truly transformative—we’ve been told by every student and have lived it ourselves—and can open up job possibilities you may never have considered.

Why be certified?

Any of our classwork builds experience and cultivates your instincts, but certification legitimizes your knowledge and your practice, lending credibility to you as a practitioner. While aromatherapy (like herbalism) isn’t a licensed profession in the U.S., it is self-regulated by two national organizations—the National Association for Holistic Aromatherapy (NAHA) and the Alliance of International Aromatherapists (AIA)—who are the recognized authorities on safety and standards of practice throughout the industry.

NYIOA is proud to be one of the few schools approved by NAHA, and we continually review and measure our curriculum and materials against NAHA’s rigorous standards.


To get your national certification at NYIOA, students have to complete these NAHA-approved courses: Level One: Foundations of Aromatherapy, and Level Two: Advanced Clinical Practitioner Program.

When you graduate from our Level One program, you will be approved to call yourself a “Certified Aromatherapist, Level One,” and can join NAHA as an “Aromatherapy Advocate.” After completing our Level Two advanced program, you will be recognized as a Dipl. AT, or a Certified AACP (Advanced Aromatherapy Clinical Practitioner) and will be eligible to join NAHA as a professional member.

Click here to learn more about our Level One and Level Two classwork.

Continuing Education

For wellness professionals needing continuing education units (CEUs), either to keep your license or just expand your skills, we partner with The School for Aromatic Studies to teach their nationally acclaimed curriculum.

Our CE courses designed for Licensed Massage Therapists, Healthcare Professionals, Yoga and Pilates teachers, Estheticians and other wellness experts are all approved by the National Certification Board for Therapeutic Massage and Bodywork (NCBTMB).

Explore our CEU classwork here.

Student Resources

Learning doesn’t live solely in the classroom; we encourage our students to follow their interests further. If you’re unsure where to look, our resources list can guide you.