Database/Hair Conditioning/Polyquaternium-66
100% petroleum · ISO 16128

Is Polyquaternium-66 natural?

No. Built from isophorone diisocyanate, an aromatic terephthalate-type polyester diol, and a synthetic quaternary ammonium ethosulfate, all petrochemical.

INCI namePolyquaternium-66
FunctionHair Conditioning · Hair Fixing
FeedstockPolyquaternium-66 is a polyurethane-type polymer from isophorone diisocyanate…

How we scored it

Isophorone diisocyanate 0 + aromatic polyester diol (benzenedicarboxylate) 0 + synthetic ethylsulfate quaternary ammonium 0 → 0/total = 0.0
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

Polyquaternium-66 is a polyurethane-type polymer from isophorone diisocyanate and an aromatic polyester diol, quaternised with a synthetic ammonium ethosulfate. All monomers are petrochemical with no natural-origin route used commercially.

In plain English

A conditioning and styling polymer that coats hair to add hold and softness. It is fully manufactured from synthetic chemical building blocks rather than from plants.

CosIng definition: 5-Isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, polymer with di(hydroxypolymethylene) benzenedicarboxylate and ethylbis(2-hydroxyethyl)methylammonium ethyl sulfate

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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. 2POLYQUATERNIUM-66. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3POLYQUATERNIUM-66. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYQUATERNIUM-66