Green coffee oil has been used in the cosmetics industry for
its ability to help maintain natural skin humidity. According to
Beveridge et al. (1999), linoleic acid – its main fatty acid – provides
relief from eczema and has therapeutic properties in the treatment
and cure of dermatitis. Furthermore, there is evidence that coffee
oil is able to absorb UV radiation in UVB range, which causes the
greatest damage to the human skin (Grollier and Plessis, 1988).
Coffee beans contain significant amounts of unsaponifiable matter.
According to Khan and Brown (1953), while the content of
unsaponifiable exhibits varies greatly in coffee beans andmay reach
levels of up to 12%, the content of unsaponifiable matter of most
vegetable oils ranges from 1.0% to 1.5%.