- Marjoram (Origanum majorana) has a woody, spicy aroma. A calming oil, it has a warming effect on both mind and body and soothes tense muscles after exercise. It is beneficial for occasional simple nervous tension* and may also be used for cooking. Marjoram has an approximate ORAC of 1,390,055 (TE/L). TE/L is expressed as micromole Trolox equivalent per liter