|This article does not cite any sources. (June 2015)|
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. To some people, synthetic fragrance oils are less desirable than plant-derived essential oils as components of perfume.
Some include (out of a very diverse range):