How we scored it
Ester of oleyl alcohol (C18 fatty alcohol) and stearic acid (C18 fatty acid); both fragments natural oleochemicals, condensation water not counted.
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
Oleyl Stearate is the ester of oleyl alcohol and stearic acid, both typically derived from vegetable oils (e.g., palm, sunflower) for cosmetic-grade material. A supplier note applies since petrochemical oxo-alcohols can occasionally substitute for oleyl alcohol.
In plain English
A skin-conditioning emollient formed by combining two fatty substances derived from vegetable oils. It functions like a natural wax ester, giving products a smooth, silky feel.
Structure
[(Z)-octadec-9-enyl] octadecanoate
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.
- 2Oleyl Stearate. PubChem CID 5367704. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3OLEYL STEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4OLEYL STEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=OLEYL%20STEARATE