Oregano oil has long been used in traditional medicine to treat colds, flu, sore throats, and other ailments. It also helps prevent infection by killing bacteria that cause illness. The oil is extracted from the leaves of the oregano plant. It contains powerful antioxidants that help fight free radicals. Oregano oil has been used to reduce inflammation, boost immunity, and prevent infection. It is also used to support healthy digestion. We stock a variety of supplements containing this active, available in liquid, capsule and tablet form.