How we scored it
Lauroyl C12 (coconut or palm kernel oleochemical) amide-linked to silk amino acids; potassium counter-ion is mineral; acid-chloride reagent leaves no mass. All natural: 1.00.
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 acylates silk protein hydrolysate with lauroyl chloride made from coconut or palm kernel lauric acid, then neutralises with potassium hydroxide. Petrochemical lauric acid is uncommon, but a supplier note on fatty-acid origin applies.
In plain English
Amino acids from hydrolysed silk joined to lauric acid, a fatty acid from coconut or palm kernel oil, and made into a potassium salt. It is used to condition hair and skin and can also act as a cleansing agent.
CosIng definition: Potassium salt of the condensation product of lauric acid chloride and silk amino acids
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.
- 2POTASSIUM LAUROYL SILK AMINO ACIDS. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POTASSIUM LAUROYL SILK AMINO ACIDS. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POTASSIUM%20LAUROYL%20SILK%20AMINO%20ACIDS