How we scored it
Glycerol (natural) esterified with 12-hydroxystearic acid (natural, hydrogenated castor oil); condensation water not counted → 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
Made by esterifying vegetable glycerin with 12-hydroxystearic acid, obtained by hydrogenating castor oil's ricinoleic acid. No petrochemical route is used commercially.
In plain English
An emollient made from plant glycerin and hydroxystearic acid, a fatty acid derived from hydrogenated castor oil. Softens skin and helps stabilise emulsions.
CosIng definition: Hydroxyoctadecanoic acid, monoester with glycerol
Structure
1,3-dihydroxypropan-2-yl 2-hydroxyoctadecanoate
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 Hydroxystearate. PubChem CID 102606. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3GLYCERYL HYDROXYSTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4GLYCERYL HYDROXYSTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=GLYCERYL%20HYDROXYSTEARATE