Aromatherapy: Sniffing Essential Oils

The essences of certain flowers and herbs produce a pleasing smell, but is it also medicinal?

Brian DunningBy Brian Dunning via skeptoid
Read transcript below or listen here

The popularity of essences of aromatic plants appears to have skyrocketed in recent years. Normally they’re used as simple fragrances, in perfumes, incense, soaps and candles, or even potpourri. But their recent rise may be due in part to stinkier practices: a lot of people are now turning to essential oils for medical purposes. Some believe they promote general wellness, some believe they boost the immune system, and some depend on specific aromatherapies to treat very specific diseases. Are they right to do so?

Why don't you remember this headline?

Why don’t you remember this headline?

Let’s look exactly at what an essential oil is. First of all, the word “essential” means that the oil contains the “essence” of whatever plant it’s from; it does not mean that it’s essential (as in necessary for health). Leaves, stems, flowers, or whatever part of the desired plant is placed in a distillation vessel with steam. The heat releases the volatile organic compounds from the plant matter (volatile means they exist as a vapor at room temperature). Volatile organic compounds are what goes into your nose when you smell a flower. These compounds are then distilled into a liquid, which we colloquially call the “essence” of the plant. Finally, to make a nicely packageable product of desired consistency and concentration, the essence is usually mixed with an odorless carrier oil. Then, voilà: we have what’s called an essential oil, strong with the smell of the plant it’s made from.

It can be a massage oil; it can be the scent added to incense; it can be added to bath water, to soaps, or to candles; you can put some in your tea; or you can dab some on your skin for the fragrance. Many such aromas are delightful, even pleasurable. For a thousand years, people have been willing to pay a fair price for essential oils. But in recent years, prices have skyrocketed, especially among allegedly “premium” oils. Why might this be? The plants have not become any more scarce, and the production methods have only become more efficient and cheaper (particularly with our global economy providing the best access ever to bargain-basement oils produced in developing countries).

The answer is a resurgence of aromatherapy in the New Age and alternative medicine communities. But before we talk about its resurgence, let’s see how it first became a thing at all.

The principal anecdote cited by virtually all credulous articles on essential oils comes from the perfume industry.

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