Tisserand Institute - Tap Into The Pool of Essential Oil Safety

Free Resources

Welcome to our Free Resources Page!

We have put this together to help you easily find the information you’re looking for. Feel free to browse and share any of our 100 Infographics with your friends or read through our in-depth blog posts written by respected experts. And if you’re looking for a quick safety guide, hop over to the Safety Pages.

If it feels a bit overwhelming and all you want to do is crawl under a blanket with a good book, we’ve got that covered too – just slide over to our Recommended Texts. And if all of this is not enough to quench your thirst for knowledge, check out our recommended External Sources.

Scroll down to learn more about the free resources offered by the Tisserand Institute…

The Tisserand Institute’s Top 5 Blog Posts

Essential Oils of Citrus Prevent Infection in Plants and Animals

by Kelly Albard, PhD Not all microbes cause disease, in fact most of them don’t, but those that do are called “pathogenic”, meaning disease-causing. Pathogenic micro-organisms (PMs), in the form of bacteria and fungi, have plagued modern humans for 200,000 years. Bacteria, nearly as old as the Earth itself, were a dominant life form about 3 billion years ago, while fungi appeared on land about 560 million years ago. Over the millennia they've established invasive

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, in this case Staphylococcus aureus, that have a reduced susceptibility to tea tree oil. So does this mean that tea

AromaTab™ – A Novel Essential Oil Tablet

by Raphael d’Angelo MD Background The human immune system must deal with a host of microbial and infectious agents throughout a person's life. Such challenges come from viruses, bacteria, fungi, parasites and those organisms that do not easily fit such well-defined categories. The drawback to a conventional approach is that antibiotics do not address most viral infections including the common cold. Furthermore, the worldwide incidence of infectious diseases has not been reduced and the emergence

Resistance is Futile

by Robert Tisserand The single chemical approach Since I became involved in aromatherapy 45 years ago, the dynamic between conventional medicine and aromatherapy has changed. Some of the weaknesses of conventional medicine (a $400 billion industry in the USA, and worth $1 trillion globally in 2014) have become more apparent, while at the same time essential oil research is validating many previously suspected properties of essential oils, as well as opening new doors for possible

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Safety Pages

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Essential Oil Dilution Chart

Knowing how to calculate dilutions is crucial to the safe practice of aromatherapy. You need to know which dilutions are safe and how to calculate them.

Download the Essential Oil Dilution Chart

First Aid Guidelines

In a few instances, a reaction can have serious consequences. As always, our aim is to show you how to minimize risk so that you can use essential oils safely, as well as effectively.

First Aid Guidelines

Why Safety is Important

Although essential oils are natural substances, “natural” and “safe” are rarely synonymous. Nature is replete with poisonous plants (deadly nightshade, wolf’s bane, foxglove, suicide tree, to name a few) not to mention spiders, snakes, scorpions, etc.

Why Safety is Important

General Safety Guidelines

General safety guidelines for essential oils, including dilution limits according to various modes of application and age ranges, and recommendations on how to prevent most adverse reactions.

General Safety Guidelines

Irritants and Allergic Reactions

In most people, an irritant or allergic reaction starts to manifest within 5 or 10 minutes of applying an essential oil and can be almost instant.

Irritants and Allergies

Cinnamon Special Report

Our findings confirm that these are high-risk essential oils when used topically and that most people should dilute them to 1% or less for safe use.

Cinnamon Special Report

Adverse Reaction Database

The Tisserand Institute’s Adverse Reaction Database, or ARD, is a collection of self-reported adverse reactions to essential oils.

Adverse Reaction Database

Bath Safety

A bath with essential oils can very easily turn unpleasant if you don’t follow one simple rule – disperse!

Bath Safety

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External Resources

We have compiled a list of other reliable online resources for your continued study, including institutes, directories, journals, and more.

Follow Tisserand Institute for updates on the safe and effective use of essential oils.

Essential Oils Blog


Essential Oil Safety