Carrier oils are essential components of aromatherapy massage and many types of natural cosmetics including bath and body oils, creams and lotions, shampoos and conditioners, facial serums and lip balms. They work supportively with essential oils and other natural ingredients, reducing the potency of their aroma without impacting their properties, while often adding beneficial properties of their own. Because of this ability, they are the silent stars of many treatments, enacting a mostly imperceptible but greatly important influence on the effectiveness of a massage and the color, scent, properties and shelf life of many products.