With thanks to Hana Tisserand for her input. You probably know that most authorities advise dilution of essential oils before use, especially if applying to the skin. There are many reasons to dilute, and we will go through them here, along with an explanation for...
Safety
Phototoxicity: essential oils, sun and safety
Photoxicity from essential oils is one of the most predictable and incontestable toxic reactions. So much so that even those who tried so hard to tell us that allergic reactions to essential oils were impossible, and were in fact signs of detoxification (they are...
Adverse reaction as a teachable moment
As you may know, the Tisserand Institute manages an Adverse Reaction Database where we collect mostly skin reactions caused by using essential oils. Anyone can submit a report, ideally with photos of the reaction. While we’re not trying to collect all adverse...
Can Lavender oil cause breast growth in children?
The claim that Lavender essential oil has been linked to pre-pubertal breast growth in children has been making the rounds since 2007. The most recent publication of cases, in 2019, catapulted this claim back into the spotlight, unfortunately with more sensationalism...
Assessing the Safety of Essential Oils – the Nutmeg Case
"Is Nutmeg essential oil safe?" someone asked the Tisserand Institute in a FB message. This, and similar questions, were prompted by a post that claimed this particular oil should not be used in any form, due to its potential toxicity. And since this claim was...
Essential Oils in Hospitals: The Ethics, Safety, Cost and Application of Clinical Aromatherapy
by Sue Pace, RN, Registered Aromatherapist Millions of people worldwide employ essential oils to influence mood, in their body care products, and for home health remedies. Over the last decade in particular, home use of essential oils in the U.S. has burgeoned....
A Beginner’s Guide to Essential Oils Part 2: How to Use Essential Oils
by Rachel Andorfer There are several ways that essential oils are commonly used therapeutically: diffusion (inhalation), topical (skin) application, baths, and oral ingestion. In this post I’ll go into detail about each method, how it works, and important safety tips....
Sloppy Science Masquerading as a “Systematic Review” of Adverse Effects in Aromatherapy
by Tamara Agnew PhD, Robert Tisserand, and Christine Carson PhD, with thanks to Kandace Knudson PhD for her input Introduction In 2012, Posadzki, Alotaibi and Ernst published a systematic review, which “was aimed at critically evaluating the evidence regarding the...
Cats and Essential Oil Safety
by Robert Tisserand This is an updated version of an article published here. Some quite strong feelings and opinions have been expressed about essential oils and cats, and a frequently asked question is “Is it safe to diffuse essential oils around cats?”. Diffusing...
Risk vs. Benefit: Using Potent Antimicrobial Essential Oils with Children
by Lauren Bridges, with thanks to Christine Carson, PhD, and Hana Belikova for their input We live in a world of quick fixes and proclaimed miracle cures, and essential oils have not escaped the proclivity people have in identifying the next magic bullet. Today, as we...
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