Chemically speaking, 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:three hence the "Sesqui" element within the molecule's identify. When Farmacy suggests "mak