Aromatherapy Online Certification Program :

The Lorrie Hargis International School of Aromatherapy’s Online Certification Program (ACP) enables students to become professionally qualified in the therapeutic uses of essential oils. This Program is approved by The National Association for Holistic Aromatherapy (NAHA).

As a student you will have exclusive access to our library of custom videos, webinars, course notes and materials. You may access these materials as often as you wish and even after graduation! 

These courses are open to all learners. No previous Aromatherapy knowledge or training is required. 

Level 1- Certified Aromatherapist (100 hours)

This level introduces the history of Aromatherapy and profiles the use of 20 essentials oils. It comprises how to use essential oils, create effective blends, safety along with methods of application. Once completed you will receive your Level 1 Certified Aromatherapist Certification.

It includes: 

  • Introduction to the history of Aromatherapy 
  • Profiles of 20 essential oils 
  • Minimum of 5 case studies 
  • Quality of essential oils 
  • Production and methods of extraction (distillation, cold pressing/expression, enfleurage, absolute, CO2 extraction) 
  • Basic physiological effects of essential oils: methods of absorption, overview of olfaction and the limbic system, the skin, digestive, lymphatic, nervous, circulatory, respiratory, reproductive, endocrine and immune system 
  • How essential oils interact on physical and emotional levels 
  • Chemistry with contraindications of certain essential oils
  • How to create/design effective blends
  • How to write case studies
  • Diluents such as vegetable oils and other carrier bases 
  • Methods of application (inhalation, diffusion, topical and internal)
  • Safety issues (including dermal, respiratory and internal)  
  • Legal, ethical, privacy issues 

Level 2 - Certified Professional Aromatherapist (245 hours)

This level builds on Level 1 Certified Aromatherapist by developing your knowledge through profiles of 40 essential oils, blending techniques, use of carrier oils, organic chemistry and botany, consultation and client skills, and how to build a sucessful business. Once completed you will receive your certification as Certified Professional Aromatherapist and be eligible to sit for the ARC (Aromatherapy Registration Council) Exam.  

 Level 2 includes Level 1 and the following: 

  • History and Modern Development 
  • Profiles of 45 essential oils  
  • Minimum of 10 case studies
  • Quality of essential oils  
  • Production and methods of extraction (distillation, cold pressing/expression, enfleurage, absolute, CO2 extraction)  
  • Botany- Botanical families, and chemotypes
  • Organic chemistry  
  • Properties of essential oils within a holistic and professional framework
  • Anatomy and the body systems with five health challenges per system and formulations for each health challenge with procotoles, essential oils, hydrosols and carrier oils and blends that benefit that health challenge 
  • Psychneuroimmunology (PNI): Demonstrate the use of essential oils to support the mind/body connection. 
  • Blending techniques  
  • Diluents such as vegetable oils and other carrier bases  
  • Methods of application (inhalation, diffusion, topical, optional: internal)  
  • Safety issues (including dermal, respiratory and internal use)  
  • Mindfulness Consultation and client education program design 
  • Business skills for the Aromatherapist – How to Build a Successful Business 
  • How to read research papers, how to write your own research paper and how to write case studies 
  • The Small Print – The Legal and Ethical considerations for the Aromatherapist 
  • Prepare for the ARC (Aromatherapy Registration Council) Exam to become a Registered Aromatherapist

Level 3 - Certified Clinical Aromatherapist (400 hours)

This level develops an in-depth knowledge of 65 essential oils and teaches Professional Aromatherapists how to find their niche in the field of Aromatherapy while building a successful business and enhancing client based skills. Once completed you will receive your certification as a Certified Clinical Aromatherapist.  

Level 3 includes both Level 1 and Level 2 and the following: 

  • Profiles of 65 essential oils  
  • Minimum of 20 case studies 
  • Properties of essential oils within a clinical framework  
  • Safety and toxicology of essential oils (topical and internal)  
  • Safety guidelines for vulnerable populations (infants & children, pregnant women, elderly, those with chronic health conditions) 
  • Mindfulness Consultation and client education program design  
  • The Small Print – The Legal and Ethical considerations for the Aromatherapist  
  • Specific tracks are available- Iridology and Aromatherapy; Animal Aromatherapy; Reflexology and Aromatherapy; Skin care and Perfumery based on Aromatherapy; Emotional Healing with Aromatherapy 

They are independent, self-study programs. You will be fully supported in all aspects of each course by the online forum director, Lorrie Hargis RA, and through module coaching calls, webinars and interaction with fellow students on the School’s forum. Full support for the Case Study Assignments and Research Papers will be provided throughout the courses and your assignments reviewed and feedback given.  

These distance learning courses set the standard for online learning. Our digital curriculum contains all the information you will need to become confident and intuitive in the use of Essential Oils for personal use or in your client based business.  

Depending on your own personal or professional needs, the School’s online aromatherapy courses enable you to:  

  • Build your confidence and level of knowledge in the use of essential oils to help yourself, family and friends .  
  • Establish the foundations for building a career in aromatherapy.  
  • Become a qualified and confident practitioner in the therapeutic use and safety of essential oils.
  • Take client case histories and to evaluate with confidence which essential oils and create blends that are appropriate for your clients.  
  • Qualify as a Registered Aromatherapist (RA) - after successfully sitting the RA examination.  
  • Qualify as a Registered Clinical Aromatherapist – upon successful completion of course, workplace experience and examination. 

Meet Your Instructors:

Lorrie Hargis, RA is an internationally recognised Registered Aromatherapist, Iridologist and Certified Flower Essence Practitioner and Kinesiologist. She has taught all over the world – America, Europe and Asia. Lorrie is currently based in France where she teaches Masters Students at the University of Montpellier. Lorrie has also delivered six month training courses in skin care and perfume product development, registration approval and marketing based on essential oils for interns from universities all over France. She has delivered Aromatherapy courses to students from all over the world and taught Certified Aromatherapy courses at the Aromatherapy Institute and Research in California. She is a published author – "Common Scents – A Practical Guide to Aromatherapy", now in its 2nd edition; "Using Common Scents" and "Essential Detox using Common Scents". Lorrie is a guest speaker at Conferences and Conventions for health and wellness companies and professional Aromatherapy Trade bodies.  

Lorrie has founded two Aromatherapy companies in the USA and France. She has worked in the French perfume, skin care and cosmetic industry using essential oils and natural, organic materials for over 11 years. She researched the ingredients for specific formulations and developed and obtained approval and registration from the European Commission for over 120 entirely new organic products – including perfume, face and body skin care, shampoos and bath and shower gels. She is a consultant for an internationally known natural health and wellness company.  

Lorrie has had her own holistic health practice since 1988, combining her unique understanding of Aromatherapy, Iridology, Kinesiology, Nutrition and Flower Essences to help many people to achieve better health and wellness. She continues to be actively involved in current research and developments and trade regulations for Aromatherapy practice and commerce. She annually attends the Conferences of the International Federation of Essential Oils and Aroma Trades (IFEAT), Phyto’Arom – The International Congress of Aromatherapy and Medicinal Plants held in Grasse, France and The European Federation of Essential Oils. She regularly visits essential oil suppliers in France, Corsica, Sri Lanka, Morocco and Italy. Lorrie was involved with ECOCERT – the controlling and certifying body for the authenticity and traceability of essential oils and all organic products from growers, suppliers to the final end product.  

Level 1 $957 (Payment plan available) 

Lorrie stays up to date with current methodologies for delivering online courses and training and has recently completed training in online distance education and marketing. She has practical experience of working in the Aromatherapy Industry, in addition to being a Registered Aromatherapist and Aromatherapy teacher which gives her unique insights into preparing her students to qualify and work as Aromatherapists.

Sue Griffiths, MA, OCR L7 Dip.SpLP; BEd Hons (1) is a teacher and university lecturer with 40 years professional experience teaching students of all ages. Sue has taught and given conference presentations in universities and schools in Britain, Europe and the Far East. She has expertise in teaching students with learning differences and in designing and managing curriculum programmes at all levels. Sue is a good listener and has a friendly and knowledgeable approach to working with students. Her style is to treat each student as a unique individual. Her sense of humour and excellent communication skills make her a good teacher to accompany you on your learning journey. Sue’s mission is to enable students of all ages and abilities to achieve their full learning potential and to support them every step of the way with kindness and understanding. She is the Academic Support Tutor for case study assignments, the research paper and the Aromatherapy Registration Council Exam to become a Registered Aromatherapist.

Course Overview:

Through our exclusive curriculum of course notes, activities and videos, you will cover a wide range of Aromatherapy related topics designed to fully prepare you to become a confident and intuitive Aromatherapist able to build your own business:  

Depending on LEVEL I, II or III - Course modules include: 

  • What is an Essential oil and how do they work? 
  • We will study the unique characteristics of 20 to 65 essential oils depending on your level  
  • The History of Essential oils  
  • Quality Assurance - How to Select an Essential oil and how they are tested? 
  • Understanding Plant Species – What’s in a Botanical Name?  
  • Botany – The Plants where essential oils come from  
  • Essential Oils - Safety and Contraindications 
  • How are Essential oils obtained?
  • Chemistry and the Aromatherapist – Understanding The Chemical Families
  • What’s in a Carrier Oil and how to use them?  
  • What is a Hydrosol and how to use them?
  • Anatomy, Physiology and Body Systems  
  • Applications – The External and Internal Details  
  • Creating Essential Oil Blends 
  • The Mindful Aromatherapist - Consulting Skills and Interactions with Clients
  • Business skills for the Aromatherapist – How to Build a Successful Business  
  • The Small Print – The Legal and Ethical considerations for the Aromatherapist  
  • Integrating Aromatherapy Into Other Health Modalities - Kinesiology, Reflexology and Iridology  
  • How to read research papers, how to write your own research paper and how to write case studies
  • Preparing for the ARC Aromatherapy Registration Council Exam to be a Registered Aromatherapist

Goals and Objectives For You:

The Lorrie Hargis International School of Aromatherapy intends that all its students: 

  • Become qualified in the safe, effective and therapeutic use of essential oils to enable their clients/family/friends to achieve wellness 
  • Feel confident and knowledgeable about using essential oils to help clients/family/friends to improve their health 
  • Develop the skills to consult with clients with confidence – taking case histories, evaluate their needs and select the appropriate essential oils to support them 
  • Understand the unique properties of essential oils and be able to create specific blends for a range of client’s needs 
  • Learn blending techniques combining the essential oil chemistry, aroma, and therapeutic properties to create blends that work on multiple layers 
  • Understand how to create a range of body care products using essential oils for personal and professional use 
  • Build a successful practice as an Aromatherapist or use the knowledge of Aromatherapy to add to an existing healthcare practice 

After Graduating Many of Our Students Go On To:

  • Further study: Level III Certified Clinical Aromatherapist 
  • Build and develop a career as a Certified Professional Aromatherapist  
  • Registered Aromatherapist (RA) (after successfully completing the ARC Aromatherapy Registration Council Exam) 
  • Join an existing healthcare practice as an Aromatherapist 
  • Use essential oils to create body care products for professional and personal use 
  • Use essential oils therapeutically for clients and self-care  

Requirements for Aromatherapy Certification:

Course Enrollment and Requirements to become a Certified Professional Aromatherapist:  

Students have up to 1 year to complete the course. To receive your Certification from The Lorrie Hargis International School of Aromatherapy, and be entitled to call yourself a Certified Professional Aromatherapist, all students must:  

  • Successfully complete Level I Certified Aromatherapist & Level II Certified Professional Aromatherapist programs  
  • Successfully complete the course assignments 15 Case Studies and a fully referenced 8-10 page Research Paper 
  • Successfully complete the School’s final examination
  • Paid the tuition fee in full  

Once you have successfully completed both Level 1 Certified Aromatherapist and Level 2 Certified Professional Aromatherapist programs you will be a graduate of The Lorrie Hargis International School of Aromatherapy. Graduates are entitled to call themselves Certified Professional Aromatherapists and will have the skills, knowledge and understanding to work confidently in all aspects with essential oils.

What Your Online Aromatherapy Certification Includes:

  • A fully resourced and supported program enabling you to become a Certified Professional Aromatherapist, 
  • 18 Modules with videos and practical activities 
  • Full Guidance and Support for Case Studies and Research Paper Assignments 
  • Online reading and reference library 
  • Online student forum 
  • Exclusive weekly, online group coaching call/training webinars with Lorrie Hargis R.A. for each LEVEL.  
  • Exclusive bonus- Individual coaching call with Lorrie- personalized assessment and an Aromatherapy blend specifically for you.  
  • Exclusive bonus- individual academic coaching call with Sue Griffiths to help with assignments. 
  • Free Live Event- attend in person or by live streaming- for Level 2 and Level 3 and special discount for Level 1
  • Full technical support 

Quick Facts:

  • You have permanent unlimited access to all course materials, videos, school online library  
  • We follow your Aromatherapy Journey and support you every step of the way Weekly Group Coaching Calls  
  • Individual Coaching Calls  
  • Online Student forum where you meet, learn and share ideas with fellow students  
  • Online Group activities and learning opportunities  
  • Online interaction with Lorrie Hargis and team via Facebook page  
  • Unique and Exclusive tool for meeting the requirements of International standards for blending essential oils- Only Available from the Lorrie Hargis International School of Aromatherapy
  • Practical Learning Opportunities 
  • Live Event  
  • Technical support

Tuition and Payment Plans:


LEVEL 2 (Includes Level 1 & 2) 

LEVEL 3 (Includes Level 1, 2 & 3) 

Student Testimonies

  • I would like to express my gratefulness to Lorrie for all the wonderful things I have learned from her concerning Aromatherapy in the past years starting in 2000 when I had my first classes and knew nothing. I first read her book and had a hunger to learn more only to get home and find a class in our area coming up - that was an amazing thing and I thank the Lord for that opportunity. So the learning began and I want to keep learning.  
  • It was amazing. Her style is awesome and to learn how powerful they are and to learn the cautions so no mistakes are made is SO IMPORTANT.  
  • Just to continue learning and adding to knowledge from such a knowledgeable person that cares comes with no words to explain. She was always there if I had questions. And she always had answers. It is great to be able to work together.”  

Myrna Schmidt, CNHP, Certified Aromatherapist  

  • Your class has given me the tools to use more essential oils. I am teaching two oil classes at a local hospital. I am studying your materials and you really set the stage for that. I am so glad I took your class. It was so great. Your books are so good and useable. I was so impressed with your class. I certainly came home with so much more than the cost. You are amazing. I am so glad I got to meet you and consider you one of the most gifted and loving souls in this business and I really mean that. Have a great day. "

Linda Kantor, Wyoming

  • I have been able to help my clients more holistically by the way Lorrie has explained each essential oil, the practical applications, how to blend them and use them Chinese Herbs.”  

Diane Maiorisi, CNHP, Certified Aromatherapist


It is open to all learners. Anyone may register for this class. No previous Aromatherapy training is required.  


You may use your own supplies. We recommend that you purchase 100% Organic essential oils

Tuition and Payment Plans:


LEVEL 2 (Includes Level 1 & 2) 

LEVEL 3 (Includes Level 1, 2 & 3)