How we scored it
Glycerol (natural) diesterified with isostearic acid (natural oleochemical C18 fatty acid); built only from natural blocks → 625.0/625.0 = 1.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.
Where it comes from
Made by esterifying vegetable-oil-derived glycerin with isostearic acid produced from oleochemical fatty acids by dimerization/isomerization. No petrochemical route is used commercially.
In plain English
An emollient and emulsifier used in creams to soften skin and help blend oil and water. Made from glycerin esterified twice with isostearic acid, a branched fatty acid from vegetable oils.
CosIng definition: Di(isooctadecanoic) acid, diester with glycerol
Structure
[3-hydroxy-2-(16-methylheptadecanoyloxy)propyl] 16-methylheptadecanoate
References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2Glyceryl Diisostearate. PubChem CID 3034483. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3GLYCERYL DIISOSTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4GLYCERYL DIISOSTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=GLYCERYL%20DIISOSTEARATE