"Essential oils are compounds extracted from plants" says Healthline.com. The oils can be made from different parts of the plant or tree such as the root,bark or flower and extracted through steam distillation or cold pressed. Essential oils are sometimes also called volatile oils, ethereal oils or aetheroleum. Essential oils are not the same as perfume oils or fragrance oils, these contain artificial ingredients. Essential oils can be used for a variety of reasons, in aromatherapy, skincare and for spiritual purposes are some of them.
Not all Essential oils are made equal, for more information, visit AromaWeb.com