Skip to main content
Supplement ScienceSupplementScience

Types of Oregano Oil: Forms & Bioavailability

Evidence:Emerging
·

This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
Emulsified Oil CapsulesModerate-HighStandardized dosing — emulsification improves absorption and reduces GI irritation
Enteric-Coated SoftgelsModerateIntestinal delivery — coating protects stomach lining and delivers carvacrol to the small intestine
Liquid Oil (Sublingual)High (local) / Moderate (systemic)Fast onset — place drops under the tongue; very strong taste; dilute in carrier oil

Emulsified Oil Capsules

Bioavailability: Moderate-High. Best for: Standardized dosing — emulsification improves absorption and reduces GI irritation.

Enteric-Coated Softgels

Bioavailability: Moderate. Best for: Intestinal delivery — coating protects stomach lining and delivers carvacrol to the small intestine.

Liquid Oil (Sublingual)

Bioavailability: High (local) / Moderate (systemic). Best for: Fast onset — place drops under the tongue; very strong taste; dilute in carrier oil.

Full Oregano Oil Guide

References

  1. RCTForce M, Sparks WS, Ronzio RA (2000). Inhibition of enteric parasites by emulsified oil of oregano in vivo. Phytotherapy Research. DOI PubMed
  2. ObservationalLu M, Dai T, Murray CK, Wu MX (2018). Bactericidal property of oregano oil against multidrug-resistant clinical isolates. Frontiers in Microbiology. DOI PubMed
  3. ObservationalLiu Y, Xu L, Du H, Feng J, et al. (2023). Effects of adding tea tree oil on growth performance, immune function, and intestinal function of broilers.. Poultry science. DOI PubMed
  4. ObservationalSimitzis PE, Symeon GK, Charismiadou MA, Bizelis JA, et al. (2010). The effects of dietary oregano oil supplementation on pig meat characteristics.. Meat science. DOI PubMed
  5. ObservationalGovaris A, Botsoglou N, Papageorgiou G, Botsoglou E, et al. (2004). Dietary versus post-mortem use of oregano oil and/or alpha-tocopherol in turkeys to inhibit development of lipid oxidation in meat during refrigerated storage.. International journal of food sciences and nutrition. DOI PubMed