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 adverse effects associated with aromatherapy” (Posadzki et al, 2012). However, it is an article awash

July 24th, 2018|

Bergamot – an identity crisis

by Robyn Frank Bergamot is one of many essential oils extracted from the outer peel of citrus fruit. It differs from other citrus oils by its chemical composition, and different therapeutic guidelines and safety precautions apply to it. This is especially true for safety limits to prevent phototoxic reactions due to the bergapten content of

November 29th, 2017|

The highs and lows of GC-MS in essential oil analysis

by Alex St-Gelais Anyone seeking information about essential oil quality soon learns about the existence of gas chromatography (GC) testing. Quite often GC and GC-MS (gas chromatography / mass spectrometry), are discussed as if they were synonymous. This is not the case, as GC and MS are two separate pieces of equipment, each with its

August 14th, 2017|

Do we really need to be worried about “cleaning” our receptors?

by Shannon Becker, PhD with thanks to Christine Carson, PhD, and Kandace Knudson, PhD for their input In order for the cells that make up an organism such as you to work in harmony, they must be able to communicate and collect information about their environment. The idea that our cell receptors—cellular signal receivers—may be

May 22nd, 2017|

Aromatherapy and Traditional Aromatic Plant Medicine in Peru

by Kelly Ablard, PhD, RA, EOT Lemongrass decoction being prepared: Pucallpa, Peru. © Kelly Ablard This study was the first of its kind carried out in Peru to identify and understand the use of aromatic plant medicine (APM) as a form of traditional medicine from the viewpoint of Aromatherapy as practiced in North America,

May 28th, 2016|

Frankincense Oil and Cancer in Perspective

by Robert Tisserand If you wanted something to keep you awake, and I offered you a choice of caffeinated coffee or decaffeinated coffee, which would you choose? It’s not a trick question. And if you wanted something to treat cancer, and I offered you a choice of frankincense A that contains 50% of an antitumoral

January 15th, 2016|

New Survey Reveals Dangers of Not Diluting Essential Oils

by Robert Tisserand Update 12/13/2017: We are very pleased to see that since the publication of our blogpost, six companies have changed their safety guidelines! Eden Botanicals now has 0.07% as the recommended dilution for Cinnamon Bark oil, and Organic Infusions, Nature’s Gift, Ananda Apothecary and Barefut. all give 0.1% as the maximum. All of these

November 12th, 2015|

Citrus Oils and Breast Health

by Robert Tisserand, with thanks to Christine Carson PhD and Linda Halcon PhD for their input. In the United States, breast cancer is the most common cancer in women, and it is the second most common cause of death from any cancer. According to the National Cancer Institute 12.3% of women will be diagnosed with

August 10th, 2015|

Tea Tree Oil is not Losing its Bug-Killing Punch

by Christine Carson, PhD An experienced group of US-based researchers (Cuaron et al. 2014) have recently published a paper with the title "The Isolation of Staphylococcus aureus Tea Tree Oil-Reduced Susceptibility Mutants" in the journal Phytotherapy Research (impact factor 2.068). The abstract is available here. As the title says, they have managed to isolate bacteria,

March 13th, 2015|

Infographic: Essential Oils as Antimicrobials

3,565 years of known history on one timeline, starting with the use of myrrh as a wound salve in ancient Egypt in 1550BC. Special thanks to Christine Carson, PhD for her input

March 12th, 2015|