oregano oil killed every single bacterial strain it was tested against in a Georgetown University study including strains that were resistant to pharmaceutical antibiotics. every strain. zero survivors that sentence should have made international headlines. a plant extract outperforming prescription antibiotics against resistant bacteria is the kind of finding that changes medicine. it didn't make headlines because a $12 bottle of oregano oil can't fund a pharmaceutical marketing campaign the mechanism is carvacrol and thymol. two compounds that destroy bacterial cell membranes on contact. the bacteria cannot develop resistance to this mechanism because the compounds attack the physical structure of the cell rather than a specific metabolic pathway. antibiotics target pathways. bacteria evolve around pathways. oregano oil targets the wall itself. you can't evolve around having your wall destroyed • killed staphylococcus aureus, E. coli, and pseudomonas aeruginosa in laboratory conditions at concentrations achievable through oral supplementation • eliminated H. pylori (the bacteria behind most stomach ulcers) in clinical use when pharmaceutical triple therapy failed. a backup treatment that outperformed the first line • antifungal activity against candida albicans comparable to nystatin (a prescription antifungal) in direct comparison studies • antiviral properties demonstrated against norovirus and herpes simplex virus in laboratory settings. one compound active against bacteria, fungi, AND viruses simultaneously • reduces SIBO (small intestinal bacterial overgrowth) symptoms as effectively as rifaximin ($1,500 per course) in a Johns Hopkins affiliated study. a $12 oil matching a $1,500 antibiotic • the antibacterial mechanism does not destroy beneficial gut bacteria at normal supplemental doses because the beneficial strains have naturally thicker cell walls. the selective toxicity is built into the chemistry the pharmaceutical industry generates $46 billion annually from antibiotics. a $12 bottle of oregano oil matching or exceeding multiple prescription antibiotics in laboratory and clinical settings is an existential threat to that revenue. the research exists. the FDA classification prevents health claims. the gap between what the science shows and what the label is allowed to say is where the profit is protected 2 to 4 drops of emulsified oregano oil in water 2 to 3 times daily for acute infections (limit to 2 weeks max). for maintenance: 1 drop daily or every other day. must be emulsified or enteric coated to prevent esophageal irritation. north american herb and spice (Oreganol P73) is the most researched brand. $18 for 2 months a plant that has been used as medicine for 4,000 years killed every antibiotic resistant strain thrown at it in a Georgetown University laboratory. the pharmaceutical industry responded by making sure you never heard about the study.