And a 2014 study involving 82 participants evaluated the effectiveness of aromatherapy for elderly people with chronic pain and symptoms of anxiety and depression. Researchers found that after four weeks of treatment with essential oils, there was a significant reduction in negative emotions, including feelings of anxiety, stress and depression, among the intervention group. (13)
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Before we talk about where I buy my essential oils, I think it’s important to discuss two terms often used in the buying controversy: “therapeutic grade” and “certified pure therapeutic grade”. It’s important to note that there is no agency that regulates these terms, rather they are made up by the essential oil industry. Don’t let these terms fool you or effect your buying.
A pilot study published in Complementary Therapies in Clinical Practice found that the use of aromatherapy as a complementary therapy helped to reduce anxiety and depression scales in postpartum women. Women between zero and 18 months postpartum were divided into either a treatment group that inhaled a blend of rose and lavender oils or a control group that didn’t receive any type of aromatherapy. After four weeks, the women using aromatherapy had significant improvements in anxiety and depression symptoms compared to those in the control group. (12)
Analysis using gas chromatography (GC) and mass spectrometry (MS) establishes the quality of essential oils. These techniques are able to measure the levels of components to a few parts per billion. This does not make it possible to determine whether each component is natural or whether a poor oil has been 'improved' by the addition of synthetic aromachemicals, but the latter is often signaled by the minor impurities present. For example, linalool made in plants will be accompanied by a small amount of hydro-linalool, whilst synthetic linalool has traces of dihydro-linalool.
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