Diploma in Aromatherapy Master Aromatherapist Online (Dip. Aroma.)

Diploma in Aromatherapy Master Aromatherapist Online (Dip. Aroma.)

Total Credits Completed

This advanced level Diploma is an in-depth study of the science and art of aromatherapy.


Exceeds the curriculum requirements of the NAHA Level Two education standards
Only accredited Alliance of International Aromatherapists’ Level III Advanced Practitioner Aromatherapy training program
Qualify to sit the national registration exam with the Aromatherapy Registration Council and become a Registered Aromatherapist (RA)
ACHS Aromatherapy graduates have a five year (2012-2016) success rate of 100% on the Aromatherapy Registration Council National Exam leading to registration as a Registered Aromatherapist.

Learning Outcomes

Outline the steps to set up a business, including insurance, management, legal issues, ethics (including AHG ethics and ARC requirements), keeping records, listening and observation skills, informed consent, marketing, business planning, nutritional, lifestyle, and wellness counseling
Locate information from state regulatory bodies to ensure compliance with local and state requirements
Educate others about appropriate holistic health protocols using essential oils to support and rebalance the body and restore wellness for general good health
Discuss aromatherapy, its history, use, and status of current research, including how to locate studies in peer-reviewed journals
Blend and administer essential oils safely
Discuss the Latin names, therapeutic uses, active constituents, methods of administration, and cautions and contraindications for each of the 56 essential oils studied
Discuss the chemistry and pharmacology of the functional groups of essential oil constituents, their therapeutic actions and contraindications and precautions
Indicate when to refer individuals to their licensed healthcare provider for diagnosis and treatment
Discuss and describe the body’s structure and function in a healthy state
Understand and identify the mechanical and biochemical changes caused by a variety of diseases or imbalances to be able to address system imbalances and provide education that individuals can use to restore wellness

Career Goals for the Diploma in Aromatherapy Master Aromatherapist (Dip. Aroma.) program:

  • Aromatherapist, Registered Aromatherapist (RA)
  • Aromatherapist, Aromatherapy Consultant, or Aromatologist
  • Aromatherapy Product Formulator & Manufacturer


Current Instructors: 

View all ACHS instructor bios, photos and courses taught online here.


Admissions Requirements:

Minimum of a high school diploma or equivalency and recommendation for admission by the ACHS Admissions Committee.


Gainful Employment Information:

Important Information about the educational debt, earnings, and completion rates of students who attended this program: click here


Tuition and Fees:

To estimate the program tuition and fees, click on the required course name below for each Total Course Price.


Required Sequence:

The required course sequence for this program is published in the ACHS Program Catalog available to download online here.

ACHS Program Fact Sheet