For a short time vegetable oils have being utilized for their functional properties, not only for their effects on touch perception. Fat molecules consists of saponifiable and unsaponifiable portions and this is what makes these raw material special, with different characteristics compared to the most common and used vegetable oils.

Among the various substances contained within the unsaponifiable fraction of vegetable oils and butters conferring a specific function to the molecule, we list: Tocopherols (E-vitamin), branched hydrocarbons (squalene, karitene and triterpen alcol), carotenoids A-vitamin precursors, phytosterols, ceramides and other minor components extremely important.
The dermatologic function of speciality oils is restorative, cicatrizant and softening.