How we scored it
Polyglycerin-4 (glycerin oligomer, base-catalyzed, natural) esterified with isostearic acid (oleochemical branched fatty acid, natural) -> 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 linking four glycerin units into polyglycerin-4, then esterifying with isostearic acid from isomerized natural fatty acids. Both building blocks are plant-derived.
In plain English
An emulsifier used in creams and serums to blend oil and water gently. It's built from glycerin, linked into a small chain, and a branched fatty acid, both plant-derived.
CosIng definition: 1,2,3-Propanetriol, homopolymer, isooctadecanoates (1:1) (4 mol glycerol average molar ratio)
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-4 ISOSTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYGLYCERYL-4 ISOSTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYGLYCERYL-4%20ISOSTEARATE