Database/Antistatic/Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein
Mostly natural · ISO 16128

Is Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein natural?

Mostly. The rice protein hydrolysate backbone and the coconut-derived alkyl chain are natural, and the chloride is a mineral counter-ion. Only the epichlorohydrin-derived hydroxypropyl linker and the dimethylamino group are petrochemical.

INCI nameCocodimonium Hydroxypropyl Hydrolyzed Rice Protein
FunctionAntistatic · Hair Conditioning
FeedstockHydrolysed rice protein is reacted with a coco-alkyl…

How we scored it

Assuming a 770 Da rice peptide with one quaternary site: natural origin is the peptide (770 Da) plus the coco alkyl chain and chloride counter-ion (205 Da) = 975 Da, against a petrochemical hydroxypropyl and dimethylamino linker (118 Da). Total 1093 Da, so 975/1093 = 0.89.
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

Hydrolysed rice protein is reacted with a coco-alkyl dimethyl quaternary ammonium epoxide. The coconut alkyl chain is oleochemical; the linker chemistry is synthetic. The degree of substitution is not published, so roughly one cationic group per eight residues was assumed.

In plain English

A hair-conditioning ingredient made by attaching a lab-made, positively-charged group carrying a coconut-oil-derived chain onto natural rice protein. Used in shampoos and conditioners to reduce static and improve combability.

CosIng definition: 2-Hydroxy-1-propanaminium, N,N-dimethyl-N-(coco-alkyl)-, 3-hydrolyzed rice protein derivs., chlorides

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