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

Is Laurdimonium Hydroxypropyl Hydrolyzed Silk natural?

Mostly. Silk protein hydrolysate and the lauryl (coconut) chain are natural; the hydroxypropyl/dimethylamino quaternizing group is petrochemical.

INCI nameLaurdimonium Hydroxypropyl Hydrolyzed Silk
FunctionAntistatic · Hair Conditioning
FeedstockHydrolysed silk protein is reacted with a lauryl…

How we scored it

Assumed ~1000 Da silk peptide (natural) + lauryl C12H25 169 Da (coconut, natural) vs hydroxypropyl+dimethylamino ~103 Da (petrochemical) = 1169/1272 = 0.92
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 silk protein is reacted with a lauryl (coconut-derived) dimethyl hydroxypropylammonium chloride quaternizing agent made from petrochemical epichlorohydrin and dimethylamine. The protein and lauryl chain dominate the mass; the quaternizing linkage is petrochemical.

In plain English

A silk protein broken into smaller pieces and combined with a coconut-derived fatty group and a mild positive charge, used to condition hair and reduce static. Mostly natural, with a small synthetic linking group.

CosIng definition: Silk hydrolysates, 2-hydroxy-3-(N-dodecyl-N,N-dimethylammonio)propyl derivatives, chlorides

Natural alternatives with the same function

Acronychia Acidula Fruit Extract 100% natural origin

An extract of lemon aspen, an Australian native fruit, used to condition skin and hair and help hold…

 Alanine 100% natural origin

An amino acid used for skin and hair conditioning, part of skin's natural moisturising factor. Made by fermenting…

 Arginine 100% natural origin

An amino acid found in skin and hair proteins, used for conditioning and moisture-binding. Made by fermenting plant…

 Asparagine 100% natural origin

An amino acid made by fermenting plant sugars, similar to other food-fermentation processes. Helps condition hair and skin…

 Aspartic Acid 100% natural origin

An amino acid used for skin conditioning and moisture retention. Usually produced by fermentation or by an enzyme…

 Capryloyl Hydrolyzed Collagen 100% natural origin

Collagen broken into small protein fragments and attached to caprylic acid, an eight-carbon fatty acid from coconut or…

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 SILK. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3LAURDIMONIUM HYDROXYPROPYL HYDROLYZED SILK. 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%20SILK