How we scored it
Undecyl C11H23 155 Da (castor-derived undecanol) + glucosyl unit from corn or wheat glucose; glycoside bond loses only water; 334/334 = 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
Dominant route: castor oil is pyrolysed to undecylenic acid, converted to undecanol and glycosylated with starch-derived glucose. Supplier note: petrochemical oxo C11 alcohol exists but is not the usual cosmetic source.
In plain English
A sugar-based cleansing ingredient made from glucose and a fatty alcohol derived from castor oil. It helps products foam and lift dirt and oil. Both parts come from plants.
CosIng definition: Undecyl Glucoside is the product obtained by the condensation of undecyl alcohol with glucose
Structure
(2R,3S,4S,5R)-2-(hydroxymethyl)-6-undecoxyoxane-3,4,5-triol
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.
- 2Undecyl Glucoside. PubChem CID 113495. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
- 3UNDECYL GLUCOSIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 4UNDECYL GLUCOSIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=UNDECYL%20GLUCOSIDE