How we scored it
Diglycerin (etherified glycerin, natural) + 3x isostearic acid (branched C18 oleochemical fatty acid, natural) -> all fragments natural-feedstock = 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 base-catalysed self-condensation of vegetable glycerin to diglycerin, then esterified with oleochemical isostearic acid. Both etherification and isomerisation steps release only water, adding no petrochemical mass.
In plain English
An emulsifier made from plant-derived glycerin, linked into a short chain, combined with a branched fatty acid from vegetable oil. Helps blend oil and water in creams.
CosIng definition: 1,2,3-Propanetriol, homopolymer, isooctadecanoates (1:3) (2 mol glycerol average molar ratio)
Structure
[3-[2,3-bis(16-methylheptadecanoyloxy)propoxy]-2-hydroxypropyl] 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.
- 2Polyglyceryl-2 Triisostearate. PubChem CID 11845292. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3POLYGLYCERYL-2 TRIISOSTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4POLYGLYCERYL-2 TRIISOSTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYGLYCERYL-2%20TRIISOSTEARATE