Essential Oils Club

Ecuadorian Oregano (Origanum vulgare)

Steam-distilledLeaf and flowering topsGuayaquil, EcuadorSeed to Seal quality

A South American oregano oil sourced from Young Living's Ecuador farm, sharing the herbaceous, high-carvacrol profile of culinary oregano oils.

How to use it

Safety. Ecuadorian oregano is a hot, high-carvacrol oil — dilute to 1% or less, patch-test, and avoid the eyes and children's skin.
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In the diffuser

A drop or two goes a long way in a cleansing-themed blend.

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Around the home

A traditional addition to homemade all-purpose cleaning sprays.

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On skin

A hot oil — dilute to 1% or less in a carrier oil and patch-test first.

Safety in detail

Max dermal use
Very low — carvacrol is a strong sensitiser and irritant; use well under 1% and never neat
Phototoxic
No
  • 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.

Sources: Sedláková et al. (2025), Pharmaceuticals

Composition & chemistry

Aggregated from 30 GC-MS samples across 19 peer-reviewed open-access studies (2018–2026). Figures are the distribution across those samples — median with interquartile range — not a single reading.

30 samples 19 papers 108 compounds 2018–2026 Strong evidence base

These figures represent Origanum vulgare across the literature. Ecuadorian Oregano is a specific origin or cultivar of that species, so its exact proportions can sit anywhere within these published ranges.

  • Oxygenated monoterpene 76.7%
  • Monoterpene hydrocarbon 20.1%
  • Sesquiterpene hydrocarbon 2.6%
  • Oxygenated sesquiterpene 0.4%
  • Other terpenoid/aromatic 0.2%
ConstituentMedianTypical rangeMaxDetected in
carvacrol ↗ C10H14O 43.4% 4.3–64.8% 83.0%
γ-terpinene ↗ C10H16 5.7% 1.7–7.8% 15.6%
p-cymene ↗ C10H14 5.0% 2.4–9.9% 19.0%
thymol ↗ C10H14O 4.5% 2.4–23.4% 40.3%
linalool ↗ C10H18O 2.1% 1.5–2.8% 5.2%
β-caryophyllene ↗ C15H24 1.9% 1.2–5.3% 12.8%
terpinen-4-ol ↗ C10H18O 1.3% 0.7–2.8% 7.9%
α-terpinene ↗ C10H16 1.3% 1.0–2.5% 20.6%
α-terpineol ↗ C10H18O 1.1% 0.4–2.2% 22.9%
myrcene ↗ C10H16 1.1% 0.8–1.5% 2.4%
α-humulene ↗ C15H24 1.1% 0.2–2.4% 6.4%
α-pinene ↗ C10H16 0.8% 0.4–1.0% 1.8%

+ 96 more compounds reported across the dataset.

19 peer-reviewed sources behind these figures
  1. Piasecki B, Balázs VL, Kieltyka-Dadasiewicz A, Szabó P, Kocsis B, Horváth G, Ludwiczuk A. (2023). Microbiological Studies on the Influence of Essential Oils from Several Origanum Species on Respiratory Pathogens. Molecules (Basel, Switzerland). Europe PMC ↗ · DOI · CC BY · 4 samples
  2. Mihaylova S, Tsvetkova A, Stamova S, Ermenlieva N, Tsankova G, Georgieva E, Peycheva K, Panayotova V, Voynikov Y. (2025). 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. Europe PMC ↗ · DOI · CC BY · 2 samples
  3. Basha E, Mamoçi E, Sharma A, Hodaj-Çeliku E, Zejnelhoxha S, Medeleanu ML, Socaci SA, Bisha B. (2025). Essential Oils from Wild Albanian <i>Lamiaceae</i>: GC-MS Profiling, Biological Activity, and Enhanced Delivery via Nanoencapsulation. Molecules (Basel, Switzerland). Europe PMC ↗ · DOI · CC BY · 2 samples
  4. Fantasma F, Segatto M, Colardo M, Di Matteo F, Chini MG, Iorizzi M, Saviano G. (2025). Phytochemistry and Bioactivity of Essential Oil and Methanolic Extracts of <i>Origanum vulgare</i> L. from Central Italy. Plants (Basel, Switzerland). Europe PMC ↗ · DOI · CC BY · 2 samples
  5. Ferreira R, Martins M, Santos V, Sardinha D, Tavares WR, Sabina S, Espinel G, Barreto MC, Oliveira L, Cabrera R, Castilho P. (2025). <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). Europe PMC ↗ · DOI · CC BY · 2 samples
  6. Mekkaoui M, Bouidida EH, Naceiri Mrabti H, Naceiri Mrabti H, Ouaamr A, Lee LH, Bouyahya A, Cherrah Y, Alaoui K. (2022). 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). Europe PMC ↗ · DOI · CC BY · 2 samples
  7. Bedini S, Farina P, Napoli E, Flamini G, Ascrizzi R, Verzera A, Conti B, Zappalà L. (2021). Bioactivity of Different Chemotypes of Oregano Essential Oil against the Blowfly Calliphora vomitoria Vector of Foodborne Pathogens. Insects. Europe PMC ↗ · DOI · CC BY · 2 samples
  8. Milenković L, Ilić ZS, Šunić L, Tmušić N, Stanojević L, Stanojević J, Cvetković D. (2021). Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano. Saudi journal of biological sciences. Europe PMC ↗ · DOI · CC BY-NC-ND · 2 samples
  9. Vladić J, Duarte ARC, Radman S, Simić S, Jerković I. (2021). Enzymatic and Microwave Pretreatments and Supercritical CO2 Extraction for Improving Extraction Efficiency and Quality of Origanum vulgare L. spp. hirtum Extracts. Plants (Basel, Switzerland). Europe PMC ↗ · DOI · CC BY · 2 samples
  10. González Carrión A, Espadero Bermeo M, Malo Cevallos I, Alejandro RR. (2026). 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. Europe PMC ↗ · DOI · CC BY · 1 sample
  11. Nezhad M, Esmaeili A, Beladi M. (2026). Development and Evaluation of Natural Hydrogel Nanocomposites for Skin Rejuvenation: Design and Optimization of Effective Formulations Journal of cosmetic dermatology. Europe PMC ↗ · CC BY · 1 sample
  12. Sun M, Miao J, Zhang Y, Hao Y, Zhang J, Li H, Bai H, Shi L. (2025). Antioxidant activity analysis of new interspecific hybrid germplasm thyme and oregano essential oils with different chemotypes. BMC plant biology. Europe PMC ↗ · DOI · CC BY-NC-ND · 1 sample
  13. 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. (2025). 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. Europe PMC ↗ · DOI · CC BY · 1 sample
  14. Andrade SCA, Uchôa AFC, Formiga ALD, Cardoso ALMR, Magalhães NSS, O França R, Dos Santos SG, Magnani M, Xavier-Junior FH, Stamford TCM. (2025). Development of Optimized <i>Origanum vulgare</i> L. Essential Oil-Loaded Chitosan/Gum Arabic Nanocapsules by Complex Coacervation. ACS omega. Europe PMC ↗ · DOI · CC BY · 1 sample
  15. Soleymanzadeh A, Valizadegan O, Hamishehkar H. (2025). Nanostructured lipid carrier of oregano essential oil for controlling Tuta absoluta with minimal impact on beneficial organisms. Scientific reports. Europe PMC ↗ · DOI · CC BY-NC-ND · 1 sample
  16. Vahabzadeh G, Moazam A, Rahimi M, Khajehasani F, Motevalian M. (2025). <i>Origanum vulgare</i> Prevents Kaolin-induced Hydrocephalus Via Regulation of GFAP and lba1 Proteins Expression in the Rat Brain. Basic and clinical neuroscience. Europe PMC ↗ · DOI · CC BY-NC · 1 sample
  17. Palla F, Bucchini AEA, Giamperi L, Marino P, Raimondo FM. (2023). Plant Extracts as Antimicrobial Agents in Sustainable Conservation of Erythrina caffra (Fabaceae) Historical Trees. Antibiotics (Basel, Switzerland). Europe PMC ↗ · DOI · CC BY · 1 sample
  18. Di Vito M, Cacaci M, Barbanti L, Martini C, Sanguinetti M, Benvenuti S, Tosi G, Fiorentini L, Scozzoli M, Bugli F, Mattarelli P. (2020). 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). Europe PMC ↗ · DOI · CC BY · 1 sample
  19. Sharififard M, Alizadeh I, Jahanifard E, Wang C, Azemi ME. (2018). Chemical Composition and Repellency of Origanum vulgare Essential Oil against Cimex lectularius under Laboratory Conditions. Journal of arthropod-borne diseases. Europe PMC ↗ · DOI · CC BY · 1 sample

Every figure above traces to a named table in one of these open-access papers. How this was built →

A drop or two goes a long way — oregano rarely needs to anchor a blend on its own.

What the research says

An honest read of the published research — what has actually been studied, at what stage. Not medical advice or a promise of results.

  • 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

Evidence & sources

Peer-reviewed research on Ecuadorian Oregano's chemistry and safety. These describe composition and documented effects — not health or treatment claims.

  1. 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

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. Sedláková et al. (2025), Pharmaceuticals

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. Bhaskara Rao et al. (2021), Frontiers in Microbiology

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.

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