Chemically Talking, this molecule is "midway" in between Sorbitan Oleate and Sorbitan Trioleate, which means that it is also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but in a ratio of two:3 for this reason the "Sesqui" aspect within the molecule's name. If you prefer oil cleanse