The Blog
Last blog published in October 2017.
For more recent articles, visit The Tisserand Institute.
EO Inhalation and Seizures?
Hi, I have a question regarding a possible adverse reaction to Young Living eucalyptus oil. A friend of mine was mopping her floor with some eucalyptus oil diluted in her mop water. The same day, her three year old had a seizure. He had never been diagnosed with a...
Why Is Essential Oil Dilution Important?
Hi Robert, I'm having some trouble understanding my essential oil dilution research and was hoping you could clarify for me. 1.) Why is dilution so important if 95% of the oil evaporates when applying topically? 2.) Is dilution recommended due to sensitivities that...
Prague Report
In 2013 I was invited to give a weekend presentation to the Czech Aromatherapy Association, and we set the dates for April 26/27 2014. On Thursday, April 24th I arrived at the airport in Prague, and was met by Jaromir and Blanka, who then took me on a one-hour drive...
Australian Tea Tree Industry Insights
I spoke with Tony Larkman, CEO of the Australian Tea Tree Industry Association, about the nonprofit he heads, his own introduction to essential oils, and issues facing the essential oils industry and tea tree oil in particular. Tony Larkman was born and raised in...
Estrogens in Plastic Labware
The safety of essential oils in puberty, and hormonal effects in general, are important health concerns. In a 2007 research report by Colorado and North Carolina doctors and scientists, in vitro evidence seemed to support the notion that lavender oil and tea tree oil...
Is there such a thing as re-distilled peppermint oil?
Hello Mr. Tisserand, I am curious about re-distilled peppermint. Someone wrote me recently and said that there was no such thing as a re-distilled peppermint. I'd like to know if this is true. Thank you! Brittany A few essential oils are 'rectified'. Because this is...
Essential Oils, Stroke Patients, and Bergamot
Dear Mr. Tisserand, I have been a student of essential oils for the last 15 years or so. I have what seems to be a defeating question. I’ve looked for the answer from some people in aromatherapy and tried also to find the answer online. Is there any kind of research...
Tea tree oil quality and constituents
I am writing this in response to a recent discussion on various facebook pages about tea tree oil (TTO), and whether a TTO with 51% terpinen-4-ol would be better than one with 41%, or whether 51% suggested adultration. Most TTO is produced in Australia and China, and...
Lemon on the rocks: keep your essential oils cool
Lemon on the rocks: keep your essential oils cool Essential oils are happiest when cold. If you keep them refrigerated they will last twice as long, especially if you live in a warm climate. Essential oils are expensive, so you want them to stay active as long as...