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Hemlock Essential Oil
Also known as Eastern Hemlock or Hemlock Spruce.
I adore the aroma of most conifers, and am particularly drawn to the fresh, crisp, needle aroma of Hemlock Essential Oil.
Aromatically, if you enjoy the aroma of fir and spruce oils, you should be pleased with the aroma of Hemlock Essential Oil. It's especially lovely to work with around Christmas and winter holidays, but its fresh aroma and therapeutic properties makes it wonderful to blend with throughout the year.
As a conifer, it's not surprising that Hemlock Oil is abundant in monoterpenes and also contains about 30-35% esters. Due to its monoterpene content, the oil will be more prone to oxidation. Therapeutically, Hemlock Oil is anti-microbial and is helpful as a decongestant and expectorant.
Emotionally, I personally find Hemlock Oil to be energizing and stimulating when I feel lethargic, but I don't find it to be over stimulating. I find it beneficial to include in diffuser blends intended to help me remain focused, optimistic, calm and balanced.
Tsuga canadensis / Pinus canadensis
Common Method of Extraction
Plant Part Typically Used
Needles and Twigs
Strength of Initial Aroma
Fresh, woody, earthy.
Hemlock Oil Uses
Muscular aches, bronchitis, coughs, colds, flu, anxiety, stress. [Julia Lawless, The Illustrated Encyclopedia of Essential Oils (Rockport, MA: Element Books, 1995), 56-67.]
[Private Communication: Rondeau, 1999. Source cited in Robert Tisserand and Rodney Young, Essential Oil Safety (Second Edition. United Kingdom: Churchill Livingstone Elsevier, 2014), 430.]
Tisserand and Young warn that old and oxidized oils should not be used. Reading Tisserand and Young's full profile is recommended. [Robert Tisserand and Rodney Young, Essential Oil Safety (Second Edition. United Kingdom: Churchill Livingstone Elsevier, 2014), 429-430.]
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The essential oil information provided on AromaWeb is intended for educational purposes only. This data is not considered complete and is not guaranteed to be accurate. The oil photos are intended to represent the typical and approximate color of each essential oil. However, oil color can vary based on harvesting, distillation and other factors. Profiles for several absolutes are included within the directory, and are denoted as such.
General Safety Information
Do not take any oils internallyand do not apply undiluted essential oils, absolutes, CO2s or other concentrated essences onto the skin without advanced essential oil knowledge or consultation from a qualified aromatherapy practitioner. If you are pregnant, epileptic, haveliver damage, have cancer, or have any other medical problem, use oilsonly under the proper guidance of a qualified aromatherapy practitioner. Useextreme caution when using oils with children and give children onlythe gentlest oils at extremely low doses. It is safest to consult a qualifiedaromatherapy practitioner before using oils with children. For in-depth information on oil safetyissues, read Essential Oil Safety by RobertTisserand and Rodney Young.
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