Chemically speaking, this molecule is "midway" amongst 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 very ratio of 2:3 therefore the "Sesqui" section while in the molecule's name. If you want oil cleansers b