Aromatherapy II: The Art and Science of Blending

Explore the next layer in the versatile and accessible therapeutic approach of Aromatherapy - The Art of Blending.

You will get an in-depth explanation of blending principles, how to identify top, middle, and base notes, and additional Materia medica on five new essential oils. Experience step-by-step instructions on creating blends, creating herb-infused carrier oils, and explore the world of hydrosols. Brand new video-based faculty demonstrations are provided. The course also includes the application of aromatherapy blends in real-world, case-based scenarios.

The use of essential oils, widely known as aromatherapy is gaining attention in integrative care practice, and for good reason. They offer another tool in integrative healthcare that is simple, effective, and inexpensive. Though there is still much to be discovered through research and experience, aromatherapy is making inroads into hospitals and health care practices. This branch of phytotherapy can be safely employed in most situations to complement and enhance treatments, often with notable results.

This course provides clinicians with an understanding of blending essential oils in aromatherapy implementation and how to counsel patients on its use in their health strategy. This is a companion piece to Aromatherapy & Health: An Introduction.

Learning Objectives

  1. Review the principles of blending.
  2. Describe top, middle, and base note categories.
  3. Describe the principles and variability of applications and dilutions, including carrier oils, other diluents, and hydrosols.
  4. Review essential oils, their historic or traditional uses, as well as any existing researched uses for health and wellbeing.
  5. Identify relevant safety issues and appropriate use of essential oils.
  6. Categorize described essential oils into top, middle, and base note categories and possible health and wellbeing applications.
  7. Apply essential oil blending use to a variety of case scenarios and read faculty comments.
  8. *Apply principles of blending to create both a mood and health support aromatherapy blend.
  9. Describe a personal case study and what blend you would create for this patient.

*Students are not required to complete any of the provided blending activities, but instruction is provided.


  • Principles of Blending - Explore an in-depth explanation of blending principles, safety tips, dilution ratios, and how to identify top, middle, and base notes.
  • Materia Medica for Blending - Materia medica is the Latin medical term for the body of collected knowledge about the therapeutic properties of any substance used for healing. This curriculum provides detailed information about 15 specific essential oils. Five new essential oils will be introduced: Cedarwood (Cedrus atlantica), Cypress (Cupressus sempervirens), Orange (Citrus sinensis), Roman Chamomile (Matricaria recutita), and Sweet Marjoram (Oreganum majorana). And the 10 essential oils from the Aromatherapy I course will be revisited.
  • Preparing to Blend - Learn about blending supplies, carrier oils, and first aid uses. In addition, build your blending experience with video-based faculty demonstrations.
  • Hydrosols - Learn about this process which involves distilled water that is recaptured after the essential oil has been removed and how to use them.
  • Case Studies - Review practical applications of blends.
  • Evaluation
  • Exam

Completion Requirements

Complete all the course work, course evaluation, and the final test with a score of 70% or better. Upon successful completion, you will be able to print your certificate of completion (shows participation, not CE credits).

Target Audience

This enduring material educational program is intended for physicians, nurse practitioners, physician assistants, nurses, dietitians, and other interested health care professionals.


When all of the above requirements are met (during the agreed-upon timeline), a link for the completion certificate is available to download and print anytime from "My Account."


This course does not constitute medical advice. Healthcare providers should exercise their own independent medical judgment.

All case studies and patient scenarios in this course are used for illustrative purposes. All depictions of persons (other than faculty) are models and not actual patients.