Database/Antistatic/Hydroxypropyltrimonium Hydrolyzed Corn Starch
Mostly natural · ISO 16128

Is Hydroxypropyltrimonium Hydrolyzed Corn Starch natural?

Mostly. Hydrolysed corn starch is natural origin and ionic chloride is mineral; the hydroxypropyl-trimethylammonium group comes from petrochemical epichlorohydrin and trimethylamine.

INCI nameHydroxypropyltrimonium Hydrolyzed Corn Starch
FunctionAntistatic · Film Forming
FeedstockDominant route: corn starch is hydrolysed, then reacted…

How we scored it

Per glucose unit: starch hydrolysate 162.1 + chloride 0.2 x 35.5 = 7.1 natural (169.2); hydroxypropyl-trimethylammonium 0.2 x 116.2 = 23.2 petrochemical (DS 0.2 assumed). 169.2 / 192.5 = 0.88.
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

Dominant route: corn starch is hydrolysed, then reacted with glycidyltrimethylammonium chloride (epichlorohydrin plus trimethylamine, usually petroleum-based). Glycerol-derived epichlorohydrin exists but is a minority supply; a degree of substitution of 0.2 (about 1.5% nitrogen) is assumed.

In plain English

A cationic (positively charged) corn-starch derivative that clings to hair and skin, reducing static and leaving a light conditioning film. The starch comes from corn; the positive charge is added by a chemical reaction.

CosIng definition: Starch, maize (Zea mays), hydrolyzed, (3-trimethylammonio-2-hydroxypropyl)-, 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. 2HYDROXYPROPYLTRIMONIUM HYDROLYZED CORN STARCH. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3HYDROXYPROPYLTRIMONIUM HYDROLYZED CORN STARCH. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HYDROXYPROPYLTRIMONIUM%20HYDROLYZED%20CORN%20STARCH