Database/Emulsion Stabilising/PEG-45/Dodecyl Glycol Copolymer
100% petroleum · ISO 16128

Is PEG-45/Dodecyl Glycol Copolymer natural?

No. Ethylene oxide is petrochemical, and the C12 diol units derive from 1-dodecene, an ethylene-oligomerisation alpha-olefin, so no fragment is credited as natural origin.

INCI namePEG-45/Dodecyl Glycol Copolymer
CAS78336-31-9
FunctionEmulsion Stabilising
FeedstockPolyethylene glycol is reacted with dodecene oxide, with…

How we scored it

PEG-45 chain 45 x 44 = 1,982 Da from ethylene oxide (0); 22 dodecanediol units (C12H24O) 4,055 Da from 1-dodecene epoxide (ethylene-derived olefin, 0); 0 / ~6,050 = 0.00.
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

Polyethylene glycol is reacted with dodecene oxide, with both monomers from petrochemical ethylene. An oleochemical lauryl route to the diol is conceivable but not standard supply, and would give about 0.67.

In plain English

A polymeric emulsifier made by joining polyethylene glycol with dodecyl glycol units. It stabilises water-in-oil emulsions and helps keep creams from separating. Both parts are made from petrochemical raw materials.

CosIng definition: Poly(oxy-1,2-ethanediyl), .alpha.-hydro-omega-hydroxy-, diethers with 1,2-dodecanediol homopolymer (45 mol EO, 22 mol dodecanediol average molar ratio)

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References

  1. 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.
  2. 2PEG-45/DODECYL GLYCOL COPOLYMER. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3PEG-45/DODECYL GLYCOL COPOLYMER. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PEG-45/DODECYL%20GLYCOL%20COPOLYMER