Database/Preservative/Polyaminopropyl Biguanide
100% petroleum · ISO 16128

Is Polyaminopropyl Biguanide natural?

No. Both monomer building blocks, hexamethylenediamine and cyanoguanidine, are synthesised from petrochemical/synthetic nitrogen chemistry.

INCI namePolyaminopropyl Biguanide
FunctionPreservative
FeedstockMade by polycondensation of hexamethylenediamine (from adiponitrile) with…

How we scored it

Condensation polymer of hexamethylenediamine and dicyandiamide, both petrochemical/synthetic nitrogen feedstocks -> 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

Made by polycondensation of hexamethylenediamine (from adiponitrile) with dicyandiamide (from calcium cyanamide). No natural-origin route exists.

In plain English

A synthetic preservative polymer used to control microbial growth in products. It is built entirely from petrochemical, synthetic nitrogen-based building blocks.

CosIng definition: Polyaminopropyl Biguanide is the organic compound that conforms to the formula:

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