Fragrance oil

Fragrance oil(s), also known as aroma oils, aromatic oils, and flavor oils, are blended synthetic aroma compounds or natural essential oils that are diluted with a carrier like propylene glycol, vegetable oil, or mineral oil. Aromatic oils are used in perfumery, cosmetics, flavoring of food, and in aromatherapy.

To some people, synthetic fragrance oils are less desirable than plant-derived essential oils as components of perfume.