Chemically speaking, this molecule is "halfway" among Sorbitan Oleate and Sorbitan Trioleate, this means that it's also an attachment of sorbitan (a dehydrated sorbitol (sugar) molecule) with the unsaturated fatty acid Oleic Acid, but inside of a ratio of 2:3 that's why the "Sesqui" part inside the molecule's title. When Farmacy says "makeup melta