Oregano (Origanum vulgare) The oregano oil is blended with cold pressed extra virgin olive oil for a safe way to enjoy its strong therapeutic properties. Our oregano essential oil is standardized to a minimum of 70% carvacrol content. The oregano is wild harvested in Turkey and the oil is extracted by steam distillation from the herb. It takes 100 kilos of plant material, to get 1 kilo of essential oil! It is a medicinal oil, that has a strong herbaceous and camphor like aroma.