# Ecuadorian Oregano essential oil > A South American oregano oil sourced from Young Living's Ecuador farm, sharing the herbaceous, high-carvacrol profile of culinary oregano oils. Canonical page: https://essential-oils.club/oils/single/ecuadorian-oregano Type: Single oil ## At a glance - **Botanical name:** Origanum vulgare - **Plant part:** Leaf and flowering tops - **Extraction:** Steam-distilled - **Aroma:** Sharp, herbaceous, medicinal - **Origin:** Guayaquil, Ecuador - **Blends with:** Lemon, grapefruit, lavender, clary sage ## Composition (GC-MS research aggregate) Based on 30 GC-MS samples from 19 peer-reviewed papers (2018–2026); Strong evidence base. 108 compounds reported in total. Typical share of the oil (median, with interquartile range): | Compound | Class | Median % | IQR % | Max % | Papers | |---|---|---|---|---|---| | carvacrol | Oxygenated monoterpene | 43.4 | 4.25–64.76 | 83.02 | 18 | | γ-terpinene | Monoterpene hydrocarbon | 5.69 | 1.73–7.8 | 15.55 | 17 | | thymol | Oxygenated monoterpene | 4.53 | 2.42–23.44 | 40.25 | 17 | | p-cymene | Monoterpene hydrocarbon | 4.95 | 2.41–9.93 | 18.97 | 15 | | β-caryophyllene | Sesquiterpene hydrocarbon | 1.89 | 1.22–5.31 | 12.84 | 18 | | linalool | Oxygenated monoterpene | 2.1 | 1.46–2.8 | 5.24 | 13 | | α-terpinene | Monoterpene hydrocarbon | 1.25 | 1–2.45 | 20.6 | 13 | | terpinen-4-ol | Oxygenated monoterpene | 1.27 | 0.68–2.81 | 7.91 | 12 | | myrcene | Monoterpene hydrocarbon | 1.07 | 0.78–1.51 | 2.35 | 13 | | α-pinene | Monoterpene hydrocarbon | 0.85 | 0.44–1 | 1.75 | 15 | | α-terpineol | Oxygenated monoterpene | 1.1 | 0.36–2.18 | 22.85 | 11 | | α-humulene | Sesquiterpene hydrocarbon | 1.05 | 0.17–2.4 | 6.41 | 7 | Chemotypes seen in the samples: carvacrol (53% of samples), thymol (20% of samples), sabinene hydrate (7% of samples). ## Key constituents - **Carvacrol** (60-80%) — The dominant phenol responsible for oregano's sharp, medicinal-herbaceous aroma and warming, hot-oil topical effect - **Thymol** — A related phenol contributing to the sharp, antiseptic-smelling profile - **p-Cymene** — A common co-occurring terpene in high-carvacrol oregano oils ## How to use it - **In the diffuser:** A drop or two goes a long way in a cleansing-themed blend. - **Around the home:** A traditional addition to homemade all-purpose cleaning sprays. - **On skin:** A hot oil — dilute to 1% or less in a carrier oil and patch-test first. ## Safety - Ecuadorian oregano is a hot, high-carvacrol oil — dilute to 1% or less, patch-test, and avoid the eyes and children's skin. - Maximum dermal use: Very low — carvacrol is a strong sensitiser and irritant; use well under 1% and never neat. - Very high in carvacrol, a potent skin and mucous-membrane irritant — never apply neat, dilute heavily, and patch-test. - Keep away from eyes, nose, and mouth; keep away from children and pets. - Not phototoxic, but among the harshest oils — handle with care. ## What the research says - Carvacrol-rich oregano oil is one of the most-studied essential oils for antimicrobial activity in the laboratory. These are in-vitro findings; they do not establish that ingesting or applying the oil treats infections in people. — Bhaskara Rao et al. (2021), Frontiers in Microbiology (https://doi.org/10.3389/fmicb.2021.741861) ## Evidence - Ecuadorian oregano, like other true oregano oils, is dominated by the phenol carvacrol — the driver of both its strong laboratory antimicrobial activity and its harshness on skin. — Sedláková et al. (2025), Pharmaceuticals (https://doi.org/10.3390/ph18020267) ## Frequently asked questions ### Is Ecuadorian oregano different from regular oregano oil? It's oregano (Origanum) grown in Ecuador. Chemically it's a carvacrol-rich oregano like others, so it carries the same strong-antimicrobial reputation and the same harsh-on-skin cautions. ### Can I take oregano oil internally to fight a cold? Its antimicrobial activity is documented in lab dishes, not proven in people, and the undiluted oil strongly irritates the mouth, throat, and gut. Don't self-prescribe internal use — talk to a qualified professional. ### Is Ecuadorian oregano phototoxic? No — it isn't phototoxic. The real precaution is its carvacrol content, which makes it one of the most irritating oils to handle. ## Sources (GC-MS studies) - Piasecki B, Balázs VL, Kieltyka-Dadasiewicz A, Szabó P, Kocsis B, Horváth G, Ludwiczuk A. Microbiological Studies on the Influence of Essential Oils from Several Origanum Species on Respiratory Pathogens. _Molecules (Basel, Switzerland)_, 2023. https://europepmc.org/article/PMC/PMC10096388 - Mihaylova S, Tsvetkova A, Stamova S, Ermenlieva N, Tsankova G, Georgieva E, Peycheva K, Panayotova V, Voynikov Y. Antibacterial Effects of Bulgarian Oregano and Thyme Essential Oils Alone and in Combination with Antibiotics Against <i>Klebsiella pneumoniae</i> and <i>Pseudomonas aeruginosa</i>. _Microorganisms_, 2025. https://europepmc.org/article/PMC/PMC12029407 - Basha E, Mamoçi E, Sharma A, Hodaj-Çeliku E, Zejnelhoxha S, Medeleanu ML, Socaci SA, Bisha B. Essential Oils from Wild Albanian <i>Lamiaceae</i>: GC-MS Profiling, Biological Activity, and Enhanced Delivery via Nanoencapsulation. _Molecules (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC12388121 - Fantasma F, Segatto M, Colardo M, Di Matteo F, Chini MG, Iorizzi M, Saviano G. Phytochemistry and Bioactivity of Essential Oil and Methanolic Extracts of <i>Origanum vulgare</i> L. from Central Italy. _Plants (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC12389479 - Ferreira R, Martins M, Santos V, Sardinha D, Tavares WR, Sabina S, Espinel G, Barreto MC, Oliveira L, Cabrera R, Castilho P. <i>Origanum vulgare</i> subsp. <i>virens</i> (Hoffmanns. & Link) Bonnier & Layens Essential Oils: Chemotypes and Bioactivity as Antifungal, Antifeeding and Enzyme Inhibitors. _Plants (Basel, Switzerland)_, 2025. https://europepmc.org/article/PMC/PMC12526278 - Mekkaoui M, Bouidida EH, Naceiri Mrabti H, Naceiri Mrabti H, Ouaamr A, Lee LH, Bouyahya A, Cherrah Y, Alaoui K. Investigation of Chemical Compounds and Evaluation of Toxicity, Antibacterial, and Anti-Inflammatory Activities of Three Selected Essential Oils and Their Mixtures with Moroccan Thyme Honey. _Foods (Basel, Switzerland)_, 2022. https://europepmc.org/article/PMC/PMC9564067 - Bedini S, Farina P, Napoli E, Flamini G, Ascrizzi R, Verzera A, Conti B, Zappalà L. Bioactivity of Different Chemotypes of Oregano Essential Oil against the Blowfly Calliphora vomitoria Vector of Foodborne Pathogens. _Insects_, 2021. https://europepmc.org/article/PMC/PMC7826667 - Milenković L, Ilić ZS, Šunić L, Tmušić N, Stanojević L, Stanojević J, Cvetković D. Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano. _Saudi journal of biological sciences_, 2021. https://europepmc.org/article/PMC/PMC8568991 - Vladić J, Duarte ARC, Radman S, Simić S, Jerković I. Enzymatic and Microwave Pretreatments and Supercritical CO2 Extraction for Improving Extraction Efficiency and Quality of Origanum vulgare L. spp. hirtum Extracts. _Plants (Basel, Switzerland)_, 2021. https://europepmc.org/article/PMC/PMC8747452 - González Carrión A, Espadero Bermeo M, Malo Cevallos I, Alejandro RR. In Vitro Evaluation of the Antimicrobial Activity of <i>Origanum vulgare</i> Essential Oil Against ESBL-Producing Strains of <i>Escherichia coli</i> and <i>Klebsiella pneumoniae</i>. _Current issues in molecular biology_, 2026. https://europepmc.org/article/PMC/PMC13115142 - Nezhad M, Esmaeili A, Beladi M. Development and Evaluation of Natural Hydrogel Nanocomposites for Skin Rejuvenation: Design and Optimization of Effective Formulations. _Journal of cosmetic dermatology_, 2026. https://europepmc.org/article/PMC/PMC13325688 - Sun M, Miao J, Zhang Y, Hao Y, Zhang J, Li H, Bai H, Shi L. Antioxidant activity analysis of new interspecific hybrid germplasm thyme and oregano essential oils with different chemotypes. _BMC plant biology_, 2025. https://europepmc.org/article/PMC/PMC11716255 - Demyashkin G, Tokov A, Belokopytov D, Shchekin V, Borovaya T, Lukash D, Yuferov D, Kulchenko N, Tarasov V, Blinova E, Tsomartova D, Shegai P, Kaprin A. Effects of <i>Satureja montana</i> L. and <i>Origanum vulgare</i> L. Hydrolates in Rabbit Burn Wound Model: Evaluation of Inflammatory, Antioxidant Activity, and Pro-Regenerative Properties in the Skin. _International journal of molecular sciences_, 2025. https://europepmc.org/article/PMC/PMC12429431 - Andrade SCA, Uchôa AFC, Formiga ALD, Cardoso ALMR, Magalhães NSS, O França R, Dos Santos SG, Magnani M, Xavier-Junior FH, Stamford TCM. Development of Optimized <i>Origanum vulgare</i> L. Essential Oil-Loaded Chitosan/Gum Arabic Nanocapsules by Complex Coacervation. _ACS omega_, 2025. https://europepmc.org/article/PMC/PMC12573181 - Soleymanzadeh A, Valizadegan O, Hamishehkar H. Nanostructured lipid carrier of oregano essential oil for controlling Tuta absoluta with minimal impact on beneficial organisms. _Scientific reports_, 2025. https://europepmc.org/article/PMC/PMC12848087 - Vahabzadeh G, Moazam A, Rahimi M, Khajehasani F, Motevalian M. <i>Origanum vulgare</i> Prevents Kaolin-induced Hydrocephalus Via Regulation of GFAP and lba1 Proteins Expression in the Rat Brain. _Basic and clinical neuroscience_, 2025. https://europepmc.org/article/PMC/PMC13220690 - Palla F, Bucchini AEA, Giamperi L, Marino P, Raimondo FM. Plant Extracts as Antimicrobial Agents in Sustainable Conservation of Erythrina caffra (Fabaceae) Historical Trees. _Antibiotics (Basel, Switzerland)_, 2023. https://europepmc.org/article/PMC/PMC10376849 - Di Vito M, Cacaci M, Barbanti L, Martini C, Sanguinetti M, Benvenuti S, Tosi G, Fiorentini L, Scozzoli M, Bugli F, Mattarelli P. Origanum vulgare Essential Oil vs. a Commercial Mixture of Essential Oils: In Vitro Effectiveness on Salmonella spp. from Poultry and Swine Intensive Livestock. _Antibiotics (Basel, Switzerland)_, 2020. https://europepmc.org/article/PMC/PMC7693145 - Sharififard M, Alizadeh I, Jahanifard E, Wang C, Azemi ME. Chemical Composition and Repellency of Origanum vulgare Essential Oil against Cimex lectularius under Laboratory Conditions. _Journal of arthropod-borne diseases_, 2018. https://europepmc.org/article/PMC/PMC6423461 _Educational reference only — not medical advice. Essential oils are not intended to diagnose, treat, cure or prevent any disease._