How we scored it
Ester of glycerin (natural) + undecylenic acid from castor oil pyrolysis (natural) → total/total = 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.
How it’s made
Where it comes from
Made by esterifying glycerin with undecylenic acid, which is obtained by pyrolysis of ricinoleic acid from castor oil. Both building blocks are plant-derived.
In plain English
An emollient and mild surfactant that softens skin and helps water and oil ingredients mix together. It is made by combining glycerin with undecylenic acid, a fatty acid derived from castor oil.
CosIng definition: Undecylenic Acid, Monoester with 1,2,3,-Propanetriol
Structure
2,3-dihydroxypropyl undec-10-enoate
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.
- 2Glyceryl Undecylenate. PubChem CID 9921382. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3GLYCERYL UNDECYLENATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4GLYCERYL UNDECYLENATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=GLYCERYL%20UNDECYLENATE