Database/Viscosity Controlling/Steareth-100/PEG-136/HDI Copolymer
Mostly petroleum · ISO 16128

Is Steareth-100/PEG-136/HDI Copolymer natural?

Mostly not. Long PEG/steareth chains and the HDI diisocyanate linker are petrochemical; only the terminal stearyl groups are oleochemical.

INCI nameSteareth-100/PEG-136/HDI Copolymer
CAS103777-69-1
FunctionViscosity Controlling
FeedstockA urethane-linked associative thickener built from long petrochemical…

How we scored it

Assumed unit: 2 steareth-100 chains (2x4405=8810Da) + PEG-136 (5991Da) + 2 HDI links (2x168=336Da) petrochemical; 2 stearyl ends (2x270=539Da) natural -> 539/15676 = 0.03
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

A urethane-linked associative thickener built from long petrochemical PEG/steareth-100 chains joined by hexamethylene diisocyanate (HDI), with stearyl alcohol (vegetable-derived) end groups. The long PEG chains dominate the mass.

In plain English

A synthetic polymer thickener used in gels and lotions, made almost entirely from petroleum-derived ethylene oxide and a synthetic linker, with tiny vegetable-derived fatty ends.

CosIng definition: Steareth-100/PEG-136/HDI Copolymer is a copolymer of steareth-100, PEG-136 and hexamethylene diisocyanate monomers

Natural alternatives with the same function

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. 2STEARETH-100/PEG-136/HDI COPOLYMER. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3STEARETH-100/PEG-136/HDI COPOLYMER. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=STEARETH-100/PEG-136/HDI%20COPOLYMER