How we scored it
Diglycerol (2 glycerin units condensed) diesterified with 2x oleic acid (vegetable fatty acid), losing only water. All atoms 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 condensing two glycerin molecules into diglycerol and esterifying it with oleic acid, typically from sunflower or olive oil. No petrochemical fragment is introduced.
In plain English
A film-forming ingredient that leaves a thin, flexible layer on skin or hair. It's made from a small glycerin chain combined with oleic acid, a common vegetable-oil fatty acid.
CosIng definition: 1,2,3-Propanetriol, homopolymer, 9-(Z)-octadecenoates (1:2) (2 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-2 DIOLEATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYGLYCERYL-2 DIOLEATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYGLYCERYL-2%20DIOLEATE