Database/Antistatic/Quaternium-79 Hydrolyzed Soy Protein
Mostly natural · ISO 16128

Is Quaternium-79 Hydrolyzed Soy Protein natural?

Mostly. Soy protein hydrolysate backbone (natural) dominates the mass; the DMAPA/epichlorohydrin quaternizing linker is petrochemical, while the grafted fatty acyl chain and chloride are natural.

INCI nameQuaternium-79 Hydrolyzed Soy Protein
FunctionAntistatic · Hair Conditioning
FeedstockMade by grafting a fatty-acid amide (from soy,…

How we scored it

Assume DS ~1 group/8 residues (770 Da natural protein). Modifier: hydroxypropyl+DMAPA-derived linker (176, petrochemical) + Cl (35, natural) + fatty acyl (~247, natural). (770+282)/(770+458) ≈ 0.86.
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 grafting a fatty-acid amide (from soy, palm or tallow-type fatty acids) via a DMAPA/epichlorohydrin quaternary linker onto hydrolyzed soy protein. The protein and fatty acyl chain are natural; the amine linker is petrochemical.

In plain English

A hair-conditioning ingredient made by attaching a lab-made, positively-charged group carrying fatty acid chains from soy or similar oils onto natural soy protein. Used in shampoos and conditioners to smooth and de-frizz hair.

CosIng definition: Protein hydrolyzates, soy (Glycine soja), 2-hydroxy-3-((3-aminopropyl)dimethylammonio)propyl derivatives, N-(1-oxohexadecyl, 1-oxo-9-(Z)-hexadecenyl and 1-oxo-9-(Z)-octadecenyl) derivatives, chlorides

Natural alternatives with the same function

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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. 2QUATERNIUM-79 HYDROLYZED SOY PROTEIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3QUATERNIUM-79 HYDROLYZED SOY PROTEIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=QUATERNIUM-79%20HYDROLYZED%20SOY%20PROTEIN