Hazardous Essential Oils
The below list displays essential oils are more toxic and possess greater risk than most other essential oils. It is strongly recommended that you avoid using these oils if you are new to working with essential oils and do not have the express administration and guidance of a qualified aromatherapy practitioner.
List of Hazardous, Dangerous and Toxic Essential Oils
Do not assume that an oil is safe to use if it is not on this list.
Prunus dulcis var. amara
Acorus calamus var. angustatus
Chenopodium ambrosioides var. anthelminticum
Essential Oils That May Cause Dermal Irritation and Skin Sensitization
The Essential Oils That May Cause Dermal Irritation and Skin Sensitization article lists essential oils that should be used with extreme care (if even at all) in topical applications.
General Safety Information
Do not take any oils internally and do not apply undiluted essential oils, absolutes, CO2s or other concentrated essences onto the skin without advanced essential oil knowledge or consultation from a qualified aromatherapy practitioner. For general dilution information, read AromaWeb's Guide to Diluting Essential Oils. If you are pregnant, epileptic, have liver damage, have cancer, or have any other medical problem, use oils only under the proper guidance of a qualified aromatherapy practitioner. Use extreme caution when using oils with children and be sure to first read the recommended dilution ratios for children. It is safest to consult a qualified aromatherapy practitioner before using oils with children, the elderly, if you have medical issues or are taking medications. Before using this or any essential oil, carefully read AromaWeb's Essential Oil Safety Information page. For in-depth information on oil safety issues, read Essential Oil Safety by Robert Tisserand and Rodney Young.
Important Information About the Profiles
The essential oil information provided on AromaWeb is intended for educational purposes only. The references to safety information, constituents and percentages is generalized information. The data is not necessary complete and is not guaranteed to be accurate. The essential oil photos are intended to represent the typical and approximate color of each essential oil. However, essential oil color can vary based on harvesting, distillation, age of the essential oil and other factors. Profiles for several absolutes are included within the directory, and are denoted as such.
Essential Oil Book Suggestions
Click on a book's title to view details and read a full review for the book. Visit AromaWeb's Books area to find details about many other essential oil and aromatherapy books.
Own Safety Profiles for 400 Essential Oils and 206 Constituents:
Essential Oil Safety: A Guide for Health Care Professionals
Authors: Robert Tisserand and Rodney Young
The Complete Book Of Essential Oils & Aromatherapy
Author: Valerie Ann Worwood
The Complete Aromatherapy & Essential Oils Handbook for Everyday Wellness
Author: Nerys Purchon and Lora Cantele
The Heart of Aromatherapy
Author: Andrea Butje