Aromatherapy II Online


AROMA 504 includes the study of the therapeutic uses, active constituents, methods of administration, and cautions and contraindications for each of the essential oils studied; oils are studied alphabetically.

The focus of the ACHS Aromatherapy Department is holistic aromatology. Holistic aromatology focuses on restoration of physical, mental, emotional, and spiritual health through the application of essential oils. We use the terms “aromatherapy” and “aromatology” interchangeably throughout the program. All healing modalities offered by ACHS focus on the holistic approach. Our philosophy is that only by taking care of the whole person—the physical, emotional, and spiritual—can health and wellness occur.

Learning Outcomes

  • Identify, discuss, and safely use the 23 organic or wildcrafted essential oils studied, including: Botanical information, identification, sources,historical uses, parts used, cultivation, harvesting, production, characteristics, active constituents, therapeutic actions, medicinal uses, evidence-based uses, household uses, perfumery, recommended doses, cautions and contraindications, regulatory status, and formulas.

  • Create lifestyle plans and aromatherapy programs to support optimal health.

  • Identify, describe, and discuss appropriate and safe uses of a full range of administrative methods for the oils studied.

  • Demonstrate the ability to research and write a case study on aromatherapy.

  • Discuss the concepts in evaluating the validity of aromatherapy research.

  • Identify the components of a literature review and the process involved in locating and accessing appropriate research.

  • Demonstrate the ability to research and write an in-depth literature review on a specific aromatherapy hypothesis.

  • Build on skills acquired in Aroma 503 and continue to learn to interpret and evaluate aromatherapy research

More details

Required Course Pack:

  • ACHS eTextbook: Petersen, D. (2020). AROMA 504: Aromatherapy Materia Medica: Essential Oil Monographs (20th Edition). Portland, OR: American College of Healthcare Sciences. (Optional: Printed copy available for an additional fee)
  • Online Materials and Library Resources (OMLR)
  • AROMA Case Study Companion Kit II

The AROMA Case Study Companion Kit II includes the following experiential learning supplies: 

  • Anise Pimpinella anisum
  • Basil Ocimum basilicum ct. Linalool
  • Bay Laurus nobilis
  • Benzoin Resinoid Styrax tonkinensis
  • Bergamot Citrus aurantium var. bergamia
  • Black Pepper Piper nigrum 
  • Buddha Wood Eremophila mitchellii
  • Cajuput Melaleuca leucadendron 
  • Cardamom Elettaria cardamomumeo
  • Carrot Seed Daucus carota 
  • Cedarwood Atlas Cedrus atlantica 
  • Cedarwood Virginia Juniperus virginiana 
  • Chamomile Roman Chamaemelum nobile
  • Cinnamon Cinnamomum zeylanicum 
  • Cistus Cistus ladaniferus 
  • Clary Sage Salvia sclarea
  • Clove Bud Syzygium aromaticum 
  • Coriander Coriandrum sativum 
  • Cypress Cupressus sempervirens 
  • Elemi Canarium luzonicum 
  • Eucalyptus Eucalyptus globulus
  • Fennel Sweet Foeniculum vulgare var. 
  • Fir Needle Abies balsamea 
  • Garlic Allium sativum 
  • Geranium Pelargonium graveolens
  • Ginger Zingibere officinale
  • Grapefruit Citrus paradisi
  • Immortelle Helichrysum italicum ct. neryl acetate
  • Lavender Lavandula angustifolia
  • Lemongrass Cymbopogon flexuosus
  • Nutmeg Myristica fragrans
  • Rose Attar Rosa damascena
  • Sandalwood Santalum album
  • White Sage Salvia apiana var. typica

This kit also contains the following raw ingredients and practical lab supplies: 

  • 1 oz Amber bottles (Qty 4)
  • 2 oz Amber bottle with cap (Qty 2)
  • 2 oz Cobalt blue spray bottle (Qty 2)
  • 5 ml Amber bottles (Qty 4)
  • 25 ml Beaker
  • 16 oz Organic Sweet Almond Oil (may contain multiple bottles to total 16oz)
  • 2 oz Apricot Kernel Oil
  • 2 oz Organic Camellia Oil
  • 2 oz Organic Jojoba Oil
  • 1/2 oz White Clay
  • 10 ml Roll-on Bottles (Qty 3)
  • 1 oz Benzoin Powder Styrax benzoin
  • Bath Salts: 2 oz Coarse Mineral Bath Salts, 4 oz Epsom Salts
  • 2 oz Cobalt Blue Bottle (Qty 2)
  • Nasal Inhaler
  • Perfume Test Strips Booklet
  • Aromatherapy Chart

Required Textbooks:

View the required textbooks for this class, including ISBN, edition, and retail price, by visiting our Required Textbooks page.

Total Course Price:

View the total course price, including tuition, fees, course materials, and shipping online here.

None – Prior formal aromatherapy training recommended

Current Instructors:

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Admissions Requirements:

Candidates must possess a baccalaureate degree or higher from an institution accredited by an agency recognized by the US Department of Education. Candidates must submit official transcripts directly from the issuing institution along with one professional letter of recommendation. All applicants must be recommended for admission by the ACHS Admissions Committee.

Total Course Price:

View the total course price including tuition, fees, course materials, and shipping.

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