How we scored it
Sodium salt of undecylenic acid, obtained from castor oil (ricinoleic acid pyrolysis); Na counter-ion natural; fatty-acid chain natural (salts from natural building blocks = 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
Sodium Undecylenate is the sodium salt of undecylenic acid, manufactured by pyrolytic cracking of ricinoleic acid from castor oil. The salt-forming reaction leaves no petrochemical mass in the finished ingredient.
In plain English
A mild cleansing and preservative ingredient made from castor oil. The oil's fatty acid is processed and combined with a mineral salt (sodium) to make this ingredient.
CosIng definition: Sodium Undecylenate is the sodium salt of undecylenic acid that conforms generally to the formula:
Structure
sodium 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.
- 2Sodium Undecylenate. PubChem CID 23667258. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3SODIUM UNDECYLENATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4SODIUM UNDECYLENATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20UNDECYLENATE