Table 2.
Characteristics of the oregano essential oils (OEOs) tested (manufacturers’ data).
| Essential Oil | Origins Manufacturer |
Characteristics of the Oil |
|---|---|---|
| OEO1 | Turkey (Hepatica) |
The oil is derived from the wild oregano (O. vulgare L.) plant, a carvacrol chemotype. It has a high concentration of carvacrol (80%) and a low concentration of thymol (<2%). A daily portion (2 drops) contains 60 mg of the oil. Pure oil, 100%. |
| OEO2 | USA (Young Living) |
The oil has an intense, pungent aroma; strong immune system-boosting properties, and supports the respiratory system. The oil contains 60–75% carvacrol. |
| OEO3 | Poland (Medi-Flowery) |
Oil obtained from organically grown oregano (O. vulgare L.) plants, 100% oregano oil. Carvacrol content minimum 80%. The product is certified for organic farming. |
| OEO4 | Europe * (Bamer) |
Top quality, pure oil extracted from oregano leaves. Laboratory-tested. Manufacturer does not provide information on chemical composition. |
* No country-of-origin information.