These are strongly scented oils whose therapeutic properties are largely attributed to their scent, although they are beneficial in other ways as well. They are made with pure essential oils diluted in a nut or seed oil known as a carrier oil. The essential oils provide the aroma as well as such actions as cleansing, toning and stimulating. The carrier oil offers lubrication, protection and emolliency. The essential oils can be added alone or in combination to create a unique scent with various effects. It is important to understand that aromatherapy oils are not the same as herbal-infused oils. You can use an herbal-infused oil as part or all of your carrier oil when making an aromatherapy oil. You can make aromatic oils for bath and massage, face oils, and other therapeutic products using the following guidelines.