# Basil essential oil > A fresh, herbaceous single oil steam-distilled from basil leaf, used for massage blends and in its culinary Vitality form. Canonical page: https://essential-oils.club/oils/single/basil Type: Single oil ## At a glance - **Botanical name:** Ocimum basilicum - **Plant part:** Leaves - **Extraction:** Steam-distilled - **Aroma:** Fresh, sweet-herbaceous - **Origin:** Mediterranean - **Blends with:** Lemon, bergamot, rosemary, lavender ## Composition (GC-MS research aggregate) Based on 148 GC-MS samples from 23 peer-reviewed papers (2021–2026); Strong evidence base. 130 compounds reported in total. Typical share of the oil (median, with interquartile range): | Compound | Class | Median % | IQR % | Max % | Papers | |---|---|---|---|---|---| | estragole | Phenylpropanoid / aromatic | 33.9 | 1.27–41.8 | 75.2 | 13 | | linalool | Oxygenated monoterpene | 19.87 | 8.24–28.13 | 63.88 | 20 | | 1,8-cineole | Oxygenated monoterpene | 7.05 | 1.98–9.13 | 24.12 | 20 | | eugenol | Phenylpropanoid / aromatic | 4.3 | 2.64–21.98 | 47.75 | 13 | | germacrene d | Sesquiterpene hydrocarbon | 1.42 | 0.6–2.63 | 6.42 | 17 | | β-caryophyllene | Sesquiterpene hydrocarbon | 0.97 | 0.45–3.14 | 5.69 | 16 | | γ-cadinene | Sesquiterpene hydrocarbon | 1.9 | 1.43–2.51 | 3.86 | 8 | | camphor | Oxygenated monoterpene | 0.74 | 0.57–1.51 | 24.61 | 12 | | β-elemene | Sesquiterpene hydrocarbon | 0.79 | 0.6–2.08 | 2.88 | 10 | | terpinen-4-ol | Oxygenated monoterpene | 0.93 | 0.58–2.22 | 3.24 | 8 | | β-pinene | Monoterpene hydrocarbon | 0.65 | 0.38–1.4 | 2.66 | 11 | | α-terpineol | Oxygenated monoterpene | 0.55 | 0.4–0.84 | 1.94 | 11 | Chemotypes seen in the samples: linalool (47% of samples), estragole (27% of samples), geranial (5% of samples). ## Key constituents - **Linalool** (40-55%) — Dominant compound giving basil its soft, slightly sweet herbaceous character - **Methyl chavicol (estragole)** — Contributes basil's characteristic anise-like edge; proportion varies by chemotype ## Chemotypes - **ct. linalool (sweet/European basil)** — The preferred, gentler type for aromatic use — linalool-dominant with lower estragole. - **ct. estragole / methyl chavicol (exotic basil)** — High in estragole, a constituent flagged for caution; less suited to leave-on skin use. - **ct. eugenol** — A spicier, clove-tinged type. ## How to use it - **In the diffuser:** 3–5 drops alone, or with lemon or bergamot for a bright, focus-friendly blend. - **On skin:** Dilute in a carrier oil — a traditional massage oil for tired muscles after activity. - **Cooking? Use Vitality:** This aromatic oil isn't for eating — the Vitality version is the food-grade one, per label directions. ## Safety - For topical use, dilute in a carrier oil and keep out of reach of children. - Maximum dermal use: Dilute in a carrier oil for skin; prefer the linalool chemotype. - Estragole (methyl chavicol) is flagged for caution — choose the linalool chemotype and keep dilution low, especially avoiding high-estragole 'exotic' basil for leave-on use. - Traditionally avoided during pregnancy. - Not phototoxic. Keep out of reach of children. ## What the research says - Basil oil has been characterised chemically and studied for antioxidant and antimicrobial activity in the laboratory. These are in-vitro findings, not evidence it treats illness. — Béné et al. (2023), International Journal of Secondary Metabolite (https://doi.org/10.21448/ijsm.1230316) ## Evidence - The favoured linalool chemotype of basil is linalool-dominant, with estragole a secondary constituent that varies sharply between chemotypes. — Béné et al. (2023), International Journal of Secondary Metabolite (https://doi.org/10.21448/ijsm.1230316) ## Frequently asked questions ### Are all basil essential oils the same? No — basil has chemotypes. The linalool ('sweet') type is gentler and preferred for aromatic use; the estragole (methyl-chavicol) 'exotic' type is higher in a constituent flagged for caution. Check which one your bottle is. ### What is estragole and why does it matter? Estragole (methyl chavicol) is a constituent found in higher amounts in 'exotic' basil that safety bodies flag for caution. Choosing the linalool chemotype and keeping dilution low sidesteps most of the concern. ### Is basil oil phototoxic? No — basil isn't phototoxic. The main consideration is choosing the gentler linalool chemotype and diluting it for skin. ## Sources (GC-MS studies) - Özliman S, Yaldiz G. Unveiling the biological activity of Ocimum basilicum through nano graphene oxide foliar application with chemical and organic fertilizers broadcasting. _Scientific reports_, 2025. https://europepmc.org/article/PMC/PMC12546849 - Ebrahimi A, Amini R, Dabbagh Mohammadi Nasab A. Enhancement of essential oil yield and quality of basil (Ocimum basilicum L.) via intercropping system, AMF and PGPR. _Scientific reports_, 2026. https://europepmc.org/article/PMC/PMC12963417 - Tursun AÖ, Türkmen M, Karaman Y, Üremiş İ, Tursun N, Soylu S. Impact of hand weeding frequency on agronomic performance and essential oil profile of purple basil (Ocimum basilicum L.). _Scientific reports_, 2026. https://europepmc.org/article/PMC/PMC13376937 - Moharrami F, Bolandnazar S, Salteh SA, Sarikhani M. Plant growth-promoting microorganisms and phosphorus levels influence growth, nutrient uptake, and secondary metabolites in hydroponic basil. _Scientific reports_, 2026. https://europepmc.org/article/PMC/PMC13265941 - Shirokova AV, Dzhatdoeva SA, Ruzhitskiy AO, Belopukhov SL, Dmitrieva VL, Luneva VE, Dmitriev LB, Kharchenko VA, Kochkarov AA, Sadykhov EG. Treasures Induced by Narrow-Spectrum: Volatile Phenylpropanoid and Terpene Compounds in Leaves of Lemon Basil (Ocimum × citriodorum Vis.), Sweet Basil (O. basilicum L.) and Bush Basil (O. minimum L.) Under Artificial Light City Farm Conditions. _Plants (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC11820399 - Mulugeta SM, Pluhár Z, Radácsi P. Phenotypic Variations and Bioactive Constituents among Selected Ocimum Species. _Plants (Basel, Switzerland)_, 2023. https://europepmc.org/article/PMC/PMC10780635 - Oliveira RC, Alves MF, Luz JMQ, Blank AF, Nizio DAC, Nogueira PCL, Silva SM, Castoldi R. Organo-Mineral Fertilizer Improves <i>Ocimum basilicum</i> Yield and Essential Oil. _Plants (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC11990405 - Nunes A, Minello LVP, Oliveira ER, Schneider AR, Dutra FS, Guizolfi T, Santos LRB, Gelli VC, Granada CE, Sperotto RA, Moura S, Maraschin M, Lima GPP. Impact of <i>Kappaphycus alvarezii</i> Biostimulant on Growth, Biochemistry, Essential Oil, and Rhizosphere of Basil (<i>Ocimum basilicum</i>) Plants. _Plants (Basel, Switzerland)_, 2026. https://europepmc.org/article/PMC/PMC13259351 - Desoukey SF, Abdel-Aziz HSM, Shoman SS, Al-Shafeay AF, Hasan RS, Abdelsalam EM, Ali SR. Effects of laser irradiation on phytochemical composition, histological anatomy, genetic diversity, and food safety of Ocimum basilicum L. _BMC plant biology_, 2026. https://europepmc.org/article/PMC/PMC12931005 - Mohamed MH, Abdelhamid AN, Ali MAA, Abd-Elhalim BT, Kandeel AM, Hassan KM. Influence of exogenously applied k-carrageenan at various concentrations on plant growth, phytochemical content, macronutrients, and essential oils of Ocimum basilicum. _Scientific reports_, 2025. https://europepmc.org/article/PMC/PMC11962130 - Eghlima G, Chegini KG, Farzaneh M, Aghamir F. Effect of common horsetail extract on growth characteristics, essential oil yield and chemical compositions of basil (Ocimum basilicum L.). _Scientific reports_, 2024. https://europepmc.org/article/PMC/PMC11094123 - De Martino L, Caputo L, Amato G, Iannone M, Barba AA, De Feo V. Postharvest Microwave Drying of Basil (Ocimum basilicum L.): The Influence of Treatments on the Quality of Dried Products. _Foods (Basel, Switzerland)_, 2022. https://europepmc.org/article/PMC/PMC8998133 - Šojić B, Zavadlav S, Bursać Kovačević D, Seratlić N, Vojvodić S, Ikonić P, Peulić T, Teslić N, Županjac M, Pavlić B. Basil as a Green Alternative to Synthetic Additives in Clean Label Gilthead Sea Bream Patties. _Foods (Basel, Switzerland)_, 2026. https://europepmc.org/article/PMC/PMC12840340 - Abbas MG, Binyameen M, Azeem M, Majeed S, Sarwar ZM, Nazir A, Sharif MMI, Parveen A, Mozūratis R. Chemical analysis, repellent, larvicidal, and oviposition deterrent activities of plant essential oils against <i>Aedes aegypti</i>, <i>Anopheles gambiae</i>, and <i>Culex quinquefasciatus</i>. _Frontiers in insect science_, 2025. https://europepmc.org/article/PMC/PMC12120851 - Paudel PN, Satyal P, Setzer WN, Awale S, Watanabe S, Maneenet J, Satyal R, Acharya A, Shrestha A, Gyawali R. Seasonal Variation in Essential Oil Composition and Bioactivity of Three <i>Ocimum</i> Species from Nepal. _Molecules (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC12430450 - Gao Z, Guo F, Song X, Liu X, Zhu P, Feng H, Lu C, Liang Z, Yang X. Ocimum basilicum essential oil controls Haemaphysalis longicornis via multi-modal toxicity, enzyme inhibition, and synergy with hexythiazox. _BMC veterinary research_, 2026. https://europepmc.org/article/PMC/PMC13421739 - Khan I, Akram S, Liaqat Z, Butt FW, Iftikhar H, Khalid NUA, Ashraf R, Abu-Yousef IA, Majdalawieh AF, Al-Qawasmeh RA, El-Naggar M, Mushtaq M. Hybrid Application of RSM and ANN to Optimize Natural Deep Eutectic Solvent-Based Distillation of <i>Ocimum basilicum</i> Essential Oil and Its Biological Activities. _International journal of molecular sciences_, 2026. https://europepmc.org/article/PMC/PMC13565859 - Mechmechani S, Shaito AA, Karousa MM, Rocha MAM, Pinto DCGA, Al-Khater M, Ali M, Hassona MM, Karam L. Chemotypic Diversity, Antioxidant, Antimicrobial, and Antibiofilm Activities of Essential Oils from Arid-Grown <i>Ocimum basilicum</i> and <i>Ocimum africanum</i> and Their Representative Active Components. _Molecules (Basel, Switzerland)_, 2026. https://europepmc.org/article/PMC/PMC13567403 - Bianchi A, Farina P, Venturi F, Trusendi F, Flamini G, Ascrizzi R, Sarrocco S, Ortega-Andrade S, Echeverria MC, Conti B, Taglieri I. Reduced Doses of Diatomaceous Earth and Basil Essential Oil on Stored Grain Against the Wheat-Damaging Sitophilus oryzae: Influence on Bread Quality and Sensory Profile. _Foods (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC11854187 - Pavone V, Argote-Vega FE, Butt W, Molina-Hernandez JB, Paludi D, Delgado-Ospina J, Valbonetti L, Pérez-Álvarez JÁ, Chaves-López C. Antibiofilm Power of Basil Essential Oil Against Fish-Originated Multidrug-Resistant <i>Salmonella</i> and <i>Bacillus</i> spp.: Targeting Biofilms on Food Contact Surfaces. _Foods (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC12110890 - …and 3 more on the canonical page. _Educational reference only — not medical advice. Essential oils are not intended to diagnose, treat, cure or prevent any disease._