How we scored it
Undecylenoyl C11H19O from castor-oil undecylenic acid plus collagen amino acids; acid chloride reagent leaves no mass; all retained atoms natural: 1.0.
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
Collagen hydrolysate (animal-derived) is acylated with undecylenoyl chloride made from castor-derived undecylenic acid. No petrochemical fragment is retained.
In plain English
A cleansing and anti-static ingredient made by attaching undecylenic acid from castor oil to amino acids from collagen. Both parts come from natural raw materials.
CosIng definition: Amino acids, collagen, 10-undecenoyl derivatives
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.
- 2UNDECYLENOYL COLLAGEN AMINO ACIDS. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3UNDECYLENOYL COLLAGEN AMINO ACIDS. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=UNDECYLENOYL%20COLLAGEN%20AMINO%20ACIDS