A carrier oil (or massage oil) is used to dilute essential oils before they are applied to the skin in massage and aromatherapy. They are so named because they "carry" the essential oil onto the skin. Diluting essential oils is a critical safety practice when using essential oils, as essential oils are powerful, concentrated volatile oils. Carrier oils alone do not contain a concentrated aroma, unlike essential oils, though some, such as olive, have a mild distinctive smell. Our Carrier Oil Blend is a wonderful way to apply your favorite essential oils to your skin but works well as a fragrance-free massage oil as well.