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In a world filled with negativity, we offer truth, honesty, and kindness in addition to our guaranteed pure essential oils & other aromatics sourced from some of the best artisan distillers all over the world. Join us in our cause with each purchase!

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Hazardous Essential Oils

The below list displays essential oils are more toxic and possess more risks than most other essential oils. It is strongly recommended that you avoid using these oils if you possess limited education and experience working with essential oils or without the express administration and guidance by a qualified aromatherapy practitioner.

Do not assume that an oil is safe to use if it is not on this list.

Ajowan
Trachyspermum copticum

Almond, Bitter
Prunus dulcis var. amara

Arnica
Arnica Montana

Birch, Sweet
Betula lenta

Boldo Leaf
Peumus boldus

Broom, Spanish
Spartium junceum

Calamus
Acorus calamus var. angustatus

Camphor, Brown
Cinnamomum camphora

Camphor, Yellow
Cinnamomum camphora

Deertongue
Carphephorus odoratissimus

Garlic
Allium sativum

Horseradish
Armoracia rusticana

Jaborandi
Pilocarpus jaborandi

Melilotus
Melilotus officinalis

Mugwort
Artemisia vulgaris

Mustard
Brassica nigra

Onion
Allium cepa

Pennyroyal
Mentha pulegium

Rue
Ruta graveolens

Sassafras
Sassafras albidum

Thuja
Thuja occidentalis

Wormseed
Chenopodium ambrosioides var. anthelminticum

Wormwood
Artemisia absinthium

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.

Shelf Life

View Shelf Life Information

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.

Essential Oil Safety

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

The Complete Book Of Essential Oils & Aromatherapy
Author: Valerie Ann Worwood

The Complete Aromatherapy & Essential Oils Handbook for Everyday Wellness

The Complete Aromatherapy & Essential Oils Handbook for Everyday Wellness
Author: Nerys Purchon and Lora Cantele

The Heart of Aromatherapy

The Heart of Aromatherapy
Author: Andrea Butje

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