How we scored it
Diglycerol (natural) esterified with stearic acid (natural fatty acid, octadecanoate) at 2:3 ratio; condensation water not counted → 1.00.
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 diglycerol with stearic acid from vegetable oil or tallow at a 2:3 molar ratio. Both feedstocks are natural-origin; no petrochemical route is used commercially.
In plain English
An emulsifier made by linking glycerin units to stearic acid, a common fat-derived fatty acid. Both building blocks are natural-origin.
CosIng definition: 1,2,3-Propanetriol, homopolymer, octadecanoates (2:3) (2 mol glycerol average molar ratio)
Structure
[2-hydroxy-3-(2-hydroxy-3-octadecanoyloxypropoxy)propyl] octadecanoate
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 Sesquistearate. PubChem CID 9896421. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3POLYGLYCERYL-2 SESQUISTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4POLYGLYCERYL-2 SESQUISTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYGLYCERYL-2%20SESQUISTEARATE