--- title: Essential Oils description: Essential oils are concentrated plant extracts used in aromatherapy and natural wellness. You will understand how these oils are extracted, their chemical properties, safe application methods, and the evidence regarding their effects on physical and emotional well-being. category: health-medicine subcategory: alternative-and-holistic difficulty: beginner, intermediate, advanced url: /subject/essential-oils --- # Essential Oils Essential oils are concentrated plant extracts used in aromatherapy and natural wellness. You will understand how these oils are extracted, their chemical properties, safe application methods, and the evidence regarding their effects on physical and emotional well-being. ## Available Resources 2 Books • 3 Websites • 2 Papers ## Websites ### 1. About Herbs, Botanicals & Other Products (MSK Integrative Medicine) Clinician-maintained database of over 300 botanicals and supplements, including monographs on lavender, tea tree and peppermint oil. Each entry summarizes constituents, proposed mechanism, clinical trial results, adverse reactions and herb-drug interactions, with references. **Difficulty:** Intermediate | **Language:** English | **Price:** Free **Link:** https://www.mskcc.org/cancer-care/diagnosis-treatment/symptom-management/integrative-medicine/herbs/search **Tags:** herbal-medicine, essential-oils, drug-interactions, evidence-based-medicine, supplements ### 2. Tisserand Institute Safety Pages **Author:** Robert Tisserand Free safety hub covering dilution ratios by age and application area, infographics on skin sensitization and phototoxicity, hazard-versus-risk reasoning, bath and diffusion cautions, and a searchable database of adverse reactions reported by users and practitioners. **Difficulty:** Beginner | **Language:** English | **Price:** Free **Link:** https://tisserandinstitute.org/safety/ **Tags:** essential oils, aromatherapy safety, dilution, skin sensitization, phototoxicity, toxicology ### 3. Aromatherapy With Essential Oils (PDQ) — Health Professional Version National Cancer Institute's evidence-graded summary of aromatherapy: extraction chemistry, preclinical antimicrobial and sedative findings, and human trials for anxiety, nausea, sleep and pain, each scored by study design. Documents adverse effects and the weakness of most trial evidence. **Difficulty:** Advanced | **Language:** English | **Price:** Free **Link:** https://www.cancer.gov/about-cancer/treatment/cam/hp/aromatherapy-pdq **Tags:** aromatherapy, essential-oils, clinical-evidence, complementary-medicine, integrative-oncology ## Papers ### 1. Essential Oils' Chemical Characterization and Investigation of Some Biological Activities: A Critical Review **Author:** Wissal Dhifi, Sana Bellili, Sabrine Jazi, Nada Bahloul, Wissem Mnif Open-access review of essential oil chemistry: terpene biosynthesis through the mevalonate and shikimate pathways, extraction and GC-MS characterization, and assessment of reported antimicrobial, antioxidant and anti-inflammatory activities alongside the methodological caveats limiting those findings. **Difficulty:** Intermediate | **Language:** English | **Price:** Free **Link:** https://pmc.ncbi.nlm.nih.gov/articles/PMC5456241/ **Tags:** essential-oils, phytochemistry, terpenes, antimicrobial-activity, gc-ms ### 2. Aromatherapy and Essential Oils: A Map of the Evidence **Author:** Michele Freeman, Chelsea Ayers, Carolyn Peterson, et al. Department of Veterans Affairs evidence map synthesizing 25 systematic reviews covering 171 trials across 26 conditions, plotting effect direction and reviewer confidence for inhaled and topical use. Finds moderate support for dysmenorrhea pain and insufficient evidence for most other claims. **Difficulty:** Intermediate | **Language:** English | **Price:** Free **Link:** https://www.ncbi.nlm.nih.gov/books/NBK551017/ **Tags:** aromatherapy, essential-oils, evidence-synthesis, systematic-reviews, clinical-evidence ## Books ### 1. Chemistry of Aromatherapeutic Oils **Author:** E. Joy Bowles Explains essential oil composition by functional group — terpenes, esters, aldehydes, ketones, phenols, oxides — alongside distillation and extraction methods, quality-control testing, and how constituents act on pharmacological targets. Includes composition charts for 89 oils and structural diagrams. **Difficulty:** Intermediate | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/174114051X?tag=edmonddante07-20 **Tags:** essential oils, aromatherapy, organic chemistry, terpenes, distillation, pharmacology ### 2. Essential Oil Safety: A Guide for Health Care Professionals (2nd Edition) **Author:** Robert Tisserand, Rodney Young Reference toxicology text covering 400 essential oil profiles and 206 constituent profiles, with maximum dermal concentrations, drug interactions, pregnancy and pediatric cautions, and roughly 4,000 citations. The standard authority practitioners cite for dilution limits and contraindications. **Difficulty:** Advanced | **Language:** English | **Price:** Paid **Link:** https://www.amazon.com/dp/0443062412?tag=edmonddante07-20 **Tags:** essential-oils, toxicology, aromatherapy-safety, dermal-limits, drug-interactions, contraindications --- *This content is part of Dantes.io - Your Treasure Map to Knowledge* *Curated by humans at Dantes.io. Personal study use welcome; republishing this curation requires permission (team@dantes.io).* View this page online: https://dantes.io/subject/essential-oils