About Robert Tisserand

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So far Robert Tisserand has created 62 blog entries.

Prague Report

RT-overlooking-pragueIn 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 around their beautiful city en route to the Hotel Step. Many of the existing structures date from the 14th century.

Friday was just for sightseeing on foot, and I was accompanied by Katerina Hroudova, Marie Noe and Hana Belikova. Hana […]

By | 2018-04-24T20:25:47+00:00 May 8th, 2014|Blog|Comments Off on Prague Report

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

Tony Larkman was born and raised in Kenya. After travelling extensively through Africa, Europe and the Middle East he returned to East Africa in 1986 to work first as a purchasing officer and then as a pig farmer before moving to Australia in 1992. Over the next 17 years Tony turned his […]

By | 2018-04-24T20:25:47+00:00 March 7th, 2014|Interview|Comments Off on Australian Tea Tree Industry Insights

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 were responsible for breast growth in three young boys, suggesting an estrogenic action. Although this article has subsequently been cited more than 180 times in scientific literature and is still widely quoted on medical websites, lavender oil has been exonerated and there is still no evidence of any link between the in […]

By | 2018-04-24T20:25:48+00:00 February 14th, 2014|Safety|4 Comments

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!

Close-up of Mentha piperitaShallow depth of field. Selective focusA few essential oils are ‘rectified’. Because this is also described as “re-distilled” it has given rise to the myth that many essential oils are distilled more than once – 1st, 2nd and 3rd grades, or distillations. But, once plant material has been distilled, it contains no essential oil – […]

By | 2018-04-24T20:25:48+00:00 January 3rd, 2014|Q & A|8 Comments

Essential Oils, Stroke Patients, and Bergamot

brain image

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 on essential oils and healing the brain, whether it be strokes or epilepsy?
I am particularly interested in essential oils on healing stroke victims.
I am not in the medical field. I would like to do a research paper on this but have hit […]

By | 2018-04-24T20:25:48+00:00 December 9th, 2013|Aromatherapy / Research, Q & A|2 Comments

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 this article is about the quality of Australian TTO, since the Chinese oils generally do not conform to the Australian standards, and there is no quality standard for Chinese TTO. The major constituent of TTO is terpinen-4-ol (T-4-ol). Most essential oils contain a single major constituent, and yet the main point of natural […]

By | 2018-04-24T20:25:58+00:00 July 28th, 2013|News, Safety|13 Comments

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 possible!


Cold good, oxidation bad
With time, most essential oil constituents oxidize, and heat promotes oxidation. Once oxidation starts it’s difficult to stop, though it is a very slow process – it takes months. So if you accidentally leave your […]

By | 2018-04-24T20:25:58+00:00 July 26th, 2013|Safety|30 Comments

Climate Change News 2013: Essential Oils Cool Planet

It now appears that the world would have warmed more than it has were it not for the aromatic cocktail of chemicals emitted by plants. It turns out that this can change the weather – and anything that changes the weather day after day and year after year changes the climate too. While this mechanism is nowhere near strong enough to save us from global warming, it may have been stronger in the past when the air was cleaner. So could it be that Gaia is not powerless after all? Stephen Battersby

It has long been suspected that the envelope of […]

By | 2018-04-24T20:25:58+00:00 July 20th, 2013|News|1 Comment

Sniffing Rosemary Can Increase Memory By 75%

Published 8-April-2013 by Jenny Hope at dailymail.co.uk

Rosemary herb Useful and attractive: Research has found the essential oil from rosemary helps long-term memory and alertness

Why a whiff of rosemary DOES help you remember: Sniffing the herb can increase memory by 75%

• The Tudors believed rosemary had powers to enhance memory
• In Hamlet, Ophelia says ‘There’s rosemary that’s for remembrance’
• Researchers have found the oil helps alertness and arithmetic

Shakespeare was right in saying rosemary can improve your memory.

Researchers have found for the first time that essential oil from the herb when […]

By | 2018-04-24T20:25:59+00:00 April 19th, 2013|Aromatherapy / Research, Sense of smell|27 Comments

Florian Birkmayer: aromatherapists & psychiatrist

Florian BirkmayerFlorian Birkmayer, M.D., founded the Birkmayer Institute in 2009 to offer holistic person-centered psychiatry and addiction medicine as well as seminars and workshops on a wide range of holistic topics to facilitate self-transformation and continued self-development. This approach has been inspired by C.G. Jung’s ideas about Individuation, which is the journey of the limited ego to the Higher Self. His emphasis in holistic psychiatry is on Equine-assisted therapy, person-centered psychotherapy and holistic medication management including aromatherapy.

I met Dr. Birkmayer in February 2013, when he attended a weekend seminar […]

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