An herbal infused oil is made by combining plant material with oil, such as olive, grapeseed, sesame, or any other plant based oil of your choice. This is allowed to either set for several weeks, sometimes in the sun, or heated gently for an hour or so in order to extract the properties of the plant into the oil. Generally, this oil is used topically, although some can be used internally as salad dressing, etc. An infused oil is NOT the same as an essential oil. They are much safer to use, since the properties of the plant in an infused oil are not as intense as what is found in an essential oil.