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Essential Oils from A to Z: A Comprehensive Guide to Aromatherapy

Updated on October 3, 2016

Essential Oils are Created from Naturally Occurring Oil Found in Flowers, Plants and Tree Bark

This basil oil is one of my go-to essential oils when I am suffering from sinus pressure.

Essential Oils A through C

Basil- This oil is uplifting and stimulating. Basil has a sweet, spicy and fresh aroma. Benefits of this essential oil include relief of sinus pressure and congestion, relief of cold symptoms, decreased fatigue and improved mood.

Bergamot- Bergamot is an essential oil with a sweet and spicy aroma. This oil works well when combined with chamomile or lavender. Refreshing and uplifting, bergamot can help with acne, blisters and other sores, as well as sore throats.

Black Pepper- An essential oil with a mild aroma, black pepper works wonders when combined with lavender or rosemary. The essential oil black pepper can work well against constipation, heartburn, digestive issues and gas.

Cajeput- The is an essential oil used for medical purposes. Cajeput is an analgesic, an antispetic, an expectorant and an insecticide. This oil works effectively against bronchitis, colds, earaches, congestion, as well as certain skin conditions.

Cannabis Flower- This essential oil has a sweet, earthy smell and works well as an anti-fungal holistic health treatment. Cannabis flower is calming and uplifting, and is often used to promote skin health, repel insects, and enhance concentration.

Carrot Seed- This oil has a woody, sweet smell and is commonly used to re-enegize the body and the mind. Carrot seed works well when blended with rosemary. This essential oil is used to treat acne, psoriasis, dry skin, and hypertension. It can also promote healthy blood circulation.

Chamomile- A soothing and relaxing essential oil, chamomile has a sweet and fruity scent. It is used for its soothing, relaxing properties. Chamomile works well when used to treat acne, blisters, boils, cysts and other skin conditions.

Citronella- An essential oil that gives off an earthy, woody aroma, citronella works well when combined with cedarwood. Benefits of citronella include relief of stomach pain and relief of pain associated with rheumatoid arthritis. Citronella is also a great insect repellent.

Cedarwood- This oil has a strong, woody aroma and is used to strengthen the body and the mind. Cedarwood is helpful for those with arthritis, bronchitis, excessive cellulite, as well as dandruff and certain skin conditions. This oil should not used while pregnant.

Clary Sage- This is a spicy, sweet smelling oil that stimulates a warming feeling throughout the body. Clary sage works well combined with rose or lavender. This oil is effective in treating asthma, depression, fatigue, and muscle soreness.

Clove- With a sweet and spicy aroma, clove is a warming essential oil that works best when combined with lavender and orange. This oil is used to help treat bronchitis, colds, indigestion, wounds and sores, as well as indigestion. Clove is extremely powerful and should always be diluted before using on the skin.

Cypress- Although Cypress has a mild scent, it can be extremely relaxing and refreshing. Cypress is an oil that works well with citrus oils and juniper. This essential oil is used to treat asthma, bronchitis, symptoms associated with menopause and the female menstrual cycle, as well as oily hair. This is an oil that shouldn't be used during pregnancy.

Lavender Oil is Calming and Therapeutic

Essential Oils D through F

Eucalyptus- A balancing essential oil, eucalyptus has a woody aroma and works well when blended with juniper or lavender. Eucalyptus has numerous healing properties, including being an air disinfectant and insect repellant, as well as a healer of asthma, bronchitis, muscle stiffness, congestion and more.

Fennel- A sweet and earthy aroma, fennel is an essential oil used for clearing away negative energy. Fennel is an oil that works best when combined with sandalwood or geranium. This is a strong oil and should be diluted before applying to the skin. Fennel works well when used to treat digestive disorders, gout, as well as tension caused from stress.

Frankincense- An uplifting oil with a sweet, woody aroma, frankincense is a relaxing essential oil. An antiseptic and an expectorant, frankincense works well when used by someone with asthma, bronchitis, pneumonia, and other respiratory conditions.

Geranium- This oil has a floral, earthy aroma and is popular for its comforting and healing properties. Geranium is typically used to help treat skin conditions, such as burns and eczema, as well as poor circulation and fluid retention.

Ginger- This extremely warming oil has a spicy, woody smell and works well when combined with citrus oils or eucalyptus. Ginger oil is effective against arthritis, bronchitis, digestive issues, as well as congestion and sinusitis.

Grapefruit- Featuring a sweet, citrus-like aroma, grapefruit is a refreshing essential oil. Grapefruit is known for its relaxing properties, which help when used on those with depression, anxiety, as well as digestive conditions.

Essential Oils 101: Online Class for Beginners

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Essential Oils H through L

Hysop- Known for its stimulating properties, hysop is an essential oil often blended with lemongrass, fennel or tangerine. A stimulant as well as an expectorant, hysop is often used on patients with asthma, bronchitis, strep throat, as well as hypertension.

Jasmine- A soothing and relaxing essential oil, jasmine works well when used during a massage. Jasmine can be combined with chamomile, citrus oils and rose. Jasmine has anti-depressant, an antiseptic, and an expectorant. This oil is helpful when treating coughs, headaches, laryngitis, as well as mental tension and anxiety.

Juniper- An oil with a sweet and woody aroma, juniper is a refreshing essential oil that can be combined with lavender or rose. Juniper oil is helpful for those with acne, cellulite, dermatitis, and other skin problems. It is also helpful in relieving pain.

Lavender- One of the most therapeutic essential oils, lavender has a sweet, woody aroma. It is often used on those with acne, bronchitis, circulatory problems, eczema, dandruff, skin problems, tension and anxiety.

Lemongrass- This refreshing essential oil is a blend of sweet and citrusy aromas. Lemongrass can be combined with basil, cedarwood, and lavender. This essential oil is used to help those with colic, fatigue, indigestion, muscle pain and stress.

Essential Oils Can Be Produced Using the Oil in Flower Petals


Essential Oils P through S

Patchouli- A relaxing essential oil, patchouli is commonly used in combination with lavender or neroli. It has a sweet and spicy aroma and works well when used to treat anxiety, depression, PMS symptoms, and water retention.

Peppermint- With a strong, menthol based aroma, peppermint oil is a powerful decongestant, analgesic, expectorant and antiseptic. It is often used by people with asthma, bronchitis, sinusitis, and joint or muscle pain.

Petit Grain- This oil has a sweet, woody aroma and is known to be restoring and stimulating. Petit grain is commonly used by those with acne, digestive issues, insomnia, fatigue, anxiety, as well as respiratory problems.

Pine- An essential oil with a strong woody aroma, pine oil is refreshing and stimulating. Pine can be used with eucalyptus and lavender. Pine oil is commonly used by those with bronchitis, laryngitis, sinusitis, and other respiratory problems.

Rose- A relaxing oil that has a warm, floral aroma, rose oil has many relaxing properties. Rose oil is used to treat skin conditions, stress and depression.

Rosemary- This oil has a refreshing, woody aroma and is known for its stimulating properties. An antiseptic, analgesic, antidepressant and decongestant, rosemary is used for treating burns, wounds, scars and cuts. This oil can also help with skin conditions and respiratory illnesses.

Sandalwood- An essential oil with a woody, sweet taste, sandalwood is often used in combination with jasmine and geranium. A potent oil that should not be used during pregnancy, sandalwood is often used by those with bronchitis, fatigue, skin conditions, and urinary tract infections.

Essential Oils M through O

Marjoram- A warm and spicy scent, marjoram is a soothing essential oil that can also be combined with cedar-wood or lavender. Marjoram is used to treat anxiety, as well as arthritis, digestive issues, sinusitis and insomnia.

Melissa Lemon-balm- A sweet aroma used for its uplifting properties, Melissa lemon-balm is an essential oil often combined with geranium or bergamot. Melissa lemon-balm is good for those struggling with skin problems, colds, or stress.

Mentha Arvensis- This is a main ingredient in many essential oils, but is mostly peppermint oil.

Mustard Oil- Mustard oil is in fact an essential oil, however it is toxic due to its high acidity content. This oil should never be used for aromatherapy purposes.

Myrrh- This essential oil has a warm, musky aroma and is known for its rejuvenating qualities. Commonly used together with clove or frankincense, myrrh is helpful in treating arthritis, bronchitis, colds, and digestive conditions.

Neroli- This relaxing oil has a pleasant floral aroma and works best when combined with chamomile, lavender or sandalwood. Neroli is used to help with anxiety, panic attacks, stress and depression. It is also helpful for people with insomnia and chronic headaches.

Orange- A fresh, citrus-smelling essential oil, orange is a refreshing and relaxing oil. Orange oil is used to help those with anxiety, depression, tension and stress, as well as respiratory conditions, skin conditions and digestive problems.

Aromatherapy is a Holistic Healing Approach that Treats the Physical Body and the Mind


Working as a nightlight, a diffuser, as well as a cool mist humidifier, this product is one of my favorite essential oil accessories.

Essential Oils T through V

Tea Tree- The fresh aromatic oil is typically reserved for medical use because of its high potency. It is an antibiotic, an insecticide, an antiviral, and an anti-fungal.

Thyme- This oil has a strong, sweet aroma that can be both refreshing and warming. Used by those with arthritis, colds, laryngitis, tonsillitis, as well as depression, fatigue and memory loss, thyme is an extremely potent essential oil that should not be used by women who are pregnant. Ironically, thyme has also been found to be an aphrodisiac.

Vetiver- An oil with a heavy musky aroma, vetiver can be extremely relaxing. Vetiver has anti-bacterial, anti-fungal, anti-septic, and sedative properties. Vetiver is commonly used by those with arthritis, insomnia, fatigue, anxiety, as well as stress.

Yling Ylang- This oil has a sweet, exotic aroma and both relaxing and stimulating properties. Yling ylang works well when combined with cedar-wood and geranium. Uses for yling ylang include treatment for anxiety and stress, as well as sexual dysfunction, intestinal problems, and high blood pressure.

© 2014 Kathleen Odenthal


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    • profile image


      2 years ago

      Just getting into oils more. Hoping to make gifts for family this holiday season

    • Jackie Lynnley profile image

      Jackie Lynnley 

      5 years ago from the beautiful south

      Floral ones bother me but I can use the herbal ones. Strange huh?

    • Jean Bakula profile image

      Jean Bakula 

      5 years ago from New Jersey

      Thanks, I was wondering. I see oils for about $10.00 that I know cost about $40.00 at YL, but I really trust the woman who introduced me to them. She is a clairvoyant, but also a psychologist, and has a healing center where she does a lot of massage work to relax and help people in pain. I couldn't understand why some of the oils are so much cheaper, and concluded they couldn't be so pure.

    • Kathleen Odenthal profile imageAUTHOR

      Kathleen Odenthal 

      5 years ago from Bridgewater

      I love essential oils, and although they are expensive, you get what you pay for!!!

    • Jean Bakula profile image

      Jean Bakula 

      5 years ago from New Jersey

      A friend introduced me to Young Living Oils, and I love them. I had a serious loss recently, and just smelling lavender helps me sleep, and I'm wearing Stress Away like perfume! I like the diffuser, and find the scents to be relaxing and fun. I also washed my hardwood floors with a few drops of lime oil (I don't have a lot of oils yet) and they shine, but didn't get too heavy with soap like they do with most cleaners. A lot of people on here don't like the YL oils, and they are expensive. I don't know if I want to sell them, I think I want to just use them for myself.

    • Kathleen Odenthal profile imageAUTHOR

      Kathleen Odenthal 

      5 years ago from Bridgewater

      Thank you very much!

    • profile image


      5 years ago

      Hi Kathleen

      This hub is very informative and has in-depth material about essential oils. I have myself tried aromatherapy facials with orange oil, lemon balm and mint extracts. It is always a very pleasurable and relaxing experience. Wish to read more from you.

    • ologsinquito profile image


      5 years ago from USA

      I use essential oils everyday and I have to restrain myself from not ordering too many, just the ones I'm going to reasonably use within a year or two.

    • Ericdierker profile image

      Eric Dierker 

      5 years ago from Spring Valley, CA. U.S.A.

      Very informative, helpful and interesting. Some here I have never heard of, thanks.


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