Introduction to Aromatherapy Online - AROMA 101

Introduction to Aromatherapy Online
Course Number


Course Description

Aroma 101 provides students with an in-depth understanding of the history and uses of essential oils including basic methods of administration and therapeutic actions of each of the oils studied. This 3-credit course is the first level of aromatherapy training at ACHS.

Learning Outcomes

Discuss aromatherapy, its history, and development
Identify and safely use 20 essential oils, from bergamot to ylang ylang, including methods of application
Assess the quality of essential oils and understand the primary production methods
Describe the physiology of the sense of smell
Give an overview of the limbic system, lymphatic system, immune system, and skin, along with methods of absorption of essential oils
Discuss how essential oils interact on physical and emotional levels
Describe the major chemical constituents of essential oils
Identify contraindications and safety issues
Create a blend and choose from a range of carrier oils


Required Course Pack:

  • ACHS eTextbook: Petersen, D. (2018). AROMA 101: Introduction to Aromatherapy (18th Edition). Portland, OR: American College of Healthcare Sciences. 
    (Optional: Printed copy available for an additional fee)
  • Online Materials and Library Resources (OMLR) 
  • Aroma 101 Essential Oil Kit - This kit includes the following certified organic or sustainably wildcrafted essential oils: Bergamot Citrus aurantium var. bergamia, Chamomile Chamaemelum nobile, Clary Sage Salvia sclarea, Cypress Cupressus sempervirens, Eucalyptus Eucalyptus globulus, Eucalyptus Eucalyptus smithii, Geranium Pelargonium graveolens, Ginger Zingiber officinale, Juniper Berry Juniperus communis, Lavandin Lavandula intermedia, Lavender Lavandula angustifolia, Lemon Citrus limonum, Lemon Eucalyptus Eucalyptus citriodora, Lime Citrus aurantiifolia, Neroli Citrus aurantium var. amara, Peppermint Mentha ×piperita, Pine Pinus sylvestris, Rose Attar Rosa damascena, Rosemary Rosmarinus officinalis, Sandalwood Santalum album, Sweet Orange Citrus sinensis, Tea Tree Australia Melaleuca alternifolia, Ylang Ylang Complete Cananga odorata. Please note: ACHS students are required to work with the assigned essential oil kit to ensure lab work is consistent and meaningful.  If you have your own oils, we invite you to conduct organoleptic lab testing on both as a comparison.
  • AROMA 101 Practical Lab Kit - This kit includes the following raw ingredient and practical lab supplies: 16 oz Sweet Almond Oil, 1 oz amber bottle
    10 ml amber bottles (Qty 2), 2 oz amber bottles (Qty 2), 2 oz cobalt blue spray bottles (Qty 2), 4 oz amber bottle, 4 oz cobalt spray bottle (Qty 4), 4 oz cobalt jar, 5 ml amber bottles (Qty 8), 8 oz cobalt jar (Qty 2), Perfume Testing Strips (Qty 26), 1 oz Beeswax, 10 ml Camellia Oil, 4 oz Epsom Salts
    2 oz Mineral Bath Salts - Coarse, 1/2 oz White Clay, 5 ml Rose Perfume Oil

Required Textbooks:

Please note: There are no additional textbooks required for this course; all required reading for this course is located in the online classroom and in the ACHS published textbook included in the Course Pack above.

Total Course Price:

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


Last updated 10/31/19

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