Fractionated coconut oil is a common carrier for perfume oils, due to its odorless scent and lack of greasy residue. It is also popular among massage therapists for their massage oils, for similar reasons. Its lack of greasy residue and overall colorlessness also means it is less likely to stain clothing than some other oils.
This is coconut oil that has been modified so that it remains liquid at room temperature. The liquid is remarkably thin – its molecules are even small enough to fit through the holes in many atomizers. Color and smell can vary from batch to batch, as with all natural products, but it is typically fairly clear and relatively odorless.