How we scored it
Where it comes from
Hydrolyzed keratin, typically from wool or feathers, is reacted with glycidyltrimethylammonium chloride, a petrochemical quaternizing agent, to give a cationic hair-conditioning polymer. Degree of substitution is assumed low.
In plain English
A hair-conditioning ingredient made from keratin protein (from wool or feathers) given a mild positive charge so it clings to hair. The protein is natural; the charged group is made synthetically.
CosIng definition: Keratin, hydrolyzed, N-(3-trimethylammonio-2-hydroxypropyl)-, chlorides
Natural alternatives with the same function
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Alanine 100% natural originAn amino acid used for skin and hair conditioning, part of skin's natural moisturising factor. Made by fermenting…
Arginine 100% natural originAn amino acid found in skin and hair proteins, used for conditioning and moisture-binding. Made by fermenting plant…
Asparagine 100% natural originAn amino acid made by fermenting plant sugars, similar to other food-fermentation processes. Helps condition hair and skin…
Aspartic Acid 100% natural originAn amino acid used for skin conditioning and moisture retention. Usually produced by fermentation or by an enzyme…
Capryloyl Hydrolyzed Collagen 100% natural originCollagen broken into small protein fragments and attached to caprylic acid, an eight-carbon fatty acid from coconut or…
References
- 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.
- 2HYDROXYPROPYLTRIMONIUM HYDROLYZED KERATIN. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3HYDROXYPROPYLTRIMONIUM HYDROLYZED KERATIN. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HYDROXYPROPYLTRIMONIUM%20HYDROLYZED%20KERATIN