They smell good, and they add zest to foods, but essential oils have many. An alcohol-based preparation (such as a liquid extract or tincture) of a plant high in .
Depending on how the essential oil is prepared, there could be toxicity from other ingredients; these preparations often contain other oils or alcohol.
Oxygenated essential oil constituents always have a terpene backbone, so the terpene name is still used in classifying the molecule. For instance, if an alcohol .
Plants contain 0.01- 10% essential oil content, but the average amount found in. The plant oil/alcohol liquid that has trapped the essential oils inside it is used .