Chemically speaking, this molecule is "halfway" in between 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 within a ratio of two:three that's why the "Sesqui" element while in the molecule's identify. Due to Nivea,