Chemically Talking, this molecule is "midway" among Sorbitan Oleate and Sorbitan Trioleate, that means that it is also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but in a very ratio of two:3 for this reason the "Sesqui" portion during the molecule's title. A lot of studies say it