by Hana Tisserand | Mar 8, 2017
Q&A Essential Oil Safety edition Question (by Helen Bairstow): I’d like to know if tea tree starts to oxidize is it still safe? And how can you tell? Answer: The more that Tea Tree oil (TTO) oxidizes, the less safe it is in terms of adverse skin reactions....
by Tisserand Institute | Feb 7, 2017
What is the difference between hazard and risk? We exist in a chemical soup. We eat, breathe and drink chemicals. We are made of chemicals and so is everything else. Especially in this industrial age, it’s important for us to identify significant risks and to...
by Tisserand Institute | Jan 20, 2017
Did you know that citrus juices and citrus essential oils contain very similar volatile compounds? But in citrus juices, they are already dissolved in “water”, similarly to volatile compounds in hydrosols. Drinking Lemon essential oil in water has been...
by Tisserand Institute | Jan 17, 2017
An answer to a frequently asked question: When to use inhalation, and when to apply essential oils topically? For more detailed information, why not sign up for the free Tisserand Institute mini-course, How Essential Oils Work in the Body? How Essential Oils Work in...
by Tisserand Institute | Dec 5, 2016
Did you know there are both similarities and differences in the properties of the two major mint essential oils? Their properties do overlap in some areas, but not in others. Spearmint is sometimes recommended for children as a safer substitute for peppermint....
by Tisserand Institute | Oct 17, 2016
Did you know that the hydrosol and essential oil from the same plant contain the same constituents but often at very different ratios? Because the hydrosol only contains about 0.05% of aromatic constituents, they are able to dissolve in this watery medium as they are...
