Oregano oil, derived primarily from Origanum vulgare, contains the active compound carvacrol and has been used in traditional medicine for centuries. Research suggests that carvacrol exhibits notable antimicrobial properties, with studies indicating potential activity against certain bacteria, fungi, and parasites, which has generated interest in its role in supporting gut health and immune function. Laboratory and preliminary clinical research also points to significant antioxidant capacity, and some studies have explored its traditional use in supporting respiratory comfort during seasonal challenges. While much of the evidence comes from in vitro and animal research, with human clinical trials still limited, oregano oil remains one of the more actively studied herbal supplements, and ongoing research continues to clarify its potential benefits and appropriate applications.
Compare this supplementResearch suggests that oregano oil possesses notable antimicrobial properties across a wide range of pathogens, inclu...
View studies →Research suggests that oregano essential oil and related extracts possess meaningful antioxidant properties, primaril...
View studies →Research suggests that oregano oil may support gut health by improving intestinal structure, promoting beneficial shi...
View studies →Research suggests that certain compounds found in oregano oil, particularly carvacrol and thymol, may have antiviral ...
View studies →Research suggests that the available studies linked here do not directly examine oregano oil's effects on human immun...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 200–600 mg | Twice daily | Gut health, antimicrobial support, general immune function | Common in clinical trials examining GI pathogens and microbiome effects |
| Capsule | 100–200 mg | Three times daily | Small intestinal bacterial overgrowth (SIBO), gut dysbiosis | Referenced in antimicrobial botanical protocol research |
| Extract | 46–200 mg | Daily | Antioxidant support, respiratory health | Based on standardized carvacrol/thymol extract studies |
| Oil | 0.2–0.4 ml | Three times daily | Antimicrobial properties, gut health | Used in studies on oregano oil emulsion for intestinal pathogens |
| Oil | 0.1 ml | Daily | Immune function, respiratory health support | Traditional and low-dose supplementation use; diluted oral administration |