Aromatherapy Essential Oil - How to Use Essential Oils

englishmedi.com — Essential oils are distilled from plant leaves, flowers, roots, seeds, barks and resins, or are expressed from the rinds of citrus fruits. It generally takes at least 50 pounds of plant material to make one pound of essential oil (for example, a pound of rosemary oil requires sixty-six pounds of herb), but the ratio is sometimes astonishing