Database/Antistatic/Laurdimonium Hydroxypropyl Hydrolyzed Casein
Mostly natural · ISO 16128

Is Laurdimonium Hydroxypropyl Hydrolyzed Casein natural?

Mostly. A natural protein hydrolysate carrying a small number of quaternary ammonium groups. The peptide, any fatty chain and the chloride are natural; the methylated nitrogen and the hydroxypropyl linker are petrochemical.

INCI nameLaurdimonium Hydroxypropyl Hydrolyzed Casein
FunctionAntistatic · Hair Conditioning
FeedstockProtein hydrolysate reacted with a glycidyl or chlorohydroxypropyl…

How we scored it

Per ~1,000 Da of peptide (natural protein hydrolysate) one quaternary group: lauryl C12H25 169.3 Da (natural) + chloride 35.5 Da (mineral) natural; N + 2×CH3 44.1 Da and hydroxypropyl C3H6O 58.1 Da petrochemical; 1204.8/1306.9 = 0.92. Substitution level is supplier-dependent; the same model is used for every quaternised protein in this wave.
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

Protein hydrolysate reacted with a glycidyl or chlorohydroxypropyl quaternary ammonium reagent.

In plain English

A milk-protein hydrolysate (casein) chemically modified with a coconut/palm-derived (lauryl) fatty group to carry a mild positive charge. Used in hair and skin products to help conditioning ingredients stick and reduce static.

CosIng definition: Hydrolysed casein, 2-hydroxy-3-(N-dodecyl-N,N-dimethylammonio)propyl 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. 2LAURDIMONIUM HYDROXYPROPYL HYDROLYZED CASEIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3LAURDIMONIUM HYDROXYPROPYL HYDROLYZED CASEIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=LAURDIMONIUM%20HYDROXYPROPYL%20HYDROLYZED%20CASEIN