Oregano leaf extract is a concentrated supplement made from the leaves of *Origanum vulgare*. It is standardized for high levels of bioactive compounds, mainly carvacrol and thymol. Fresh or dried kitchen oregano does not provide the same potency.
People reach for the extract to support immune function and digestive health, often at the first sign of seasonal sniffles or for occasional stomach complaints. You can find it as liquid drops, capsules, or softgels.
This is a potent extract and not meant for long-term use without guidance. It may interact with blood-thinning medications and diabetes drugs. Steer clear during pregnancy and while breastfeeding.