Essential Oils to Avoid
or use with extreme caution…
The oils listed here are considered common irritants to toxic, depending on use. An oil that may be safe to use in a room fragrance may not be safe to use on your skin. Ones that are listed to avoid, I would do just that…avoid. Unless you have a thorough knowledge and understanding of aromatherapy and have been practicing for years, I would suggest playing it safe. Although you may find the oils are available in stores, that does not mean they are safe!
This is not an exhaustive list by any means and you are urged to seek the guidance of your doctor and/or a reputable and experienced aromatherapist before using any essential oil. Depending on your health, age, and other factors, an oil that is suitable for one person may be dangerous to you. Just because an oil doesn’t show up under a list is not an indication that it is okay for your use. Again, seek the advice of your physician for medical advice and guidance.
Avoid using due to high toxicity levels or other dangers:
Savin / Savine
Use with extreme caution. Only in very small quantities and infrequently if at all:
Bay (West Indian)
Hyssop (avoid completely if high blood pressure or epileptic)
Rosemary (avoid completely if high blood pressure or epileptic)
Sage (Spanish) (avoid completely if high blood pressure or epileptic)
Sweet Fennel (avoid completely if epileptic)
Thyme (white) (avoid completely if high blood pressure)
Use with caution on skin or in bath:
Allspice (do not use on face, nipples, genitalia, or in bath)
Angelica (avoid completely if diabetic)
Bay (West Indian/Bayberry/St. Thomas)
Thyme (do not use on face, nipples, genitalia, or in bath — avoid completely if high blood pressure)
Do not use on sensitive skin, face, nipples, genitalia, or in bath:
Thyme (avoid completely if high blood pressure)
Oils known to cause photosensitivity to UV rays include:
Bergamot (except bergapten-free)
Any essential oil should be used with caution and only after doing a patch test. If you have a known existing health condition, such as epilepsy, diabetes, high blood pressure, heart, liver, or other organ issues, etc, consult your doctor and/or a reputable, experienced aromatherapist before using any essential oil.
Buy and use only 100% pure essential oils.
The use of essential oils is not recommended for the very young or aged, or pregnant/nursing women. It is the belief of this site that essential oils should not be used internally, only externally and topically. A skin test should always be done before using an essential oil, especially important for those more sensitive or vulnerable. Consult a reputable and experienced aromatherapist for guidance. If you are under the care of a physician, it is recommended that you contact them before using essential oils.