Database/Antistatic/Polyquaternium-73
100% petroleum · ISO 16128

Is Polyquaternium-73 natural?

No. All three monomers are petrochemical acrylamide- and methacrylate-based quaternary ammonium building blocks with no natural fragment.

INCI namePolyquaternium-73
FunctionAntistatic · Film Forming
FeedstockManufactured by free-radical copolymerization of three synthetic acrylamide/methacrylate…

How we scored it

Propyltrimonium chloride acrylamide + ethyltrimonium chloride methacrylate + dimethylacrylamide; all three monomers petrochemical acrylamide/methacrylate derivatives → 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

Manufactured by free-radical copolymerization of three synthetic acrylamide/methacrylate quaternary ammonium monomers derived from propylene/acrylonitrile feedstocks. No natural-feedstock route exists.

In plain English

A synthetic film-forming, antistatic polymer used in hair styling and conditioning products, built entirely from acrylamide and methacrylate-based quaternary ammonium monomers.

CosIng definition: Polyquaternium-73 is a polymeric quaternary ammonium salt consisting of propyltrimonium chloride acrylamide, ethyltrimonium chloride methacrylate and dimethylacrylamide monomers; Propanaminium, N,N,N-trimethyl-3-(2-propenamido)-, chloride, polymer with N,N,N-trimethyl-2-(2-methyl-2-propenoyloxy)ethanaminium chloride and N,N-dimethyl-2-propenamide

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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-73. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3POLYQUATERNIUM-73. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYQUATERNIUM-73