The Use of Natural Oils to Treat the Skin

The Use of Natural Oils to Treat the Skin Roger L. McMullen Fairleigh Dickinson University and Ashland Inc. The term natural oil refers to a fixed (nonvolatile) oil of animal or plant origin. These types of oils—in contrast to essential (volatile) oils, which are obtained by steam distillation methods of plant matter—are typically obtained from […]