The main chemical components are carvacrol, thymol, p-cymene, cis-ocimene, caryophyllene and linalool.
Spanish oregano is also known as Thymus capitans, Coridothymus capitatus, Satureja capitata, Israeli oreganum, Cretan thyme or thyme of the ancients.
Oregano oil has a powerful, spicy, camphor-like aroma, is pale yellow in color and medium to watery in viscosity.
Origin of Oregano oil
Oregano is a hardy, bushy perennial herb that grows up to 90cm (35 in) high, with an erect hairy stem, dark green oval leaves and a profusion of pink flowers clustered in heads at the top of the branches.
It is a common garden plant, favored by bees, with a strong aroma when the leaves are bruised.
Oregano is a herb with an ancient medical reputation, now-a-days it is used extensively in Mediterranean cooking and dental preparations.
Oregano oil from Origanum vulgare, as well as oil extracted from Thymus capitatus (Spanish oregano), is a dermal toxin, skin irritant and mucus membrane irritant and should not be used in aromatherapy and should also be avoided in pregnancy.