Oregano oil is a natural essential oil extracted from the leaves of the oregano plant. It is rich in compounds such as carvacrol and thymol, which have antimicrobial and antioxidant properties. Oregano oil is commonly used as a dietary supplement and in traditional remedies to support immune health, digestive function, and overall wellness. Because it is highly concentrated, it should be used according to product instructions and may need to be diluted before topical use.