Database/Cleansing/C9-11 Alkyl Glucoside
Mostly natural · ISO 16128

Is C9-11 Alkyl Glucoside natural?

Mostly. Glucose from starch is natural; the C9-11 alcohol is an odd-chain cut that natural fats lack, so it is a petrochemical oxo alcohol.

INCI nameC9-11 Alkyl Glucoside
CAS132778-08-6
FunctionCleansing · Cleansing Surfactant
FeedstockGlucose (starch hydrolysate) is acetalised with C9-11 fatty…

How we scored it

Avg C10, DP 1.4: alkyl-O 157.3 (oxo alcohol, petrochemical) + glucose units 228.0 (starch, natural) = 385.3; 228.0 / 385.3 = 0.59.
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

Glucose (starch hydrolysate) is acetalised with C9-11 fatty alcohol under acid catalysis. The odd-chain C9-11 cut suggests a petrochemical oxo alcohol (Neodol 91 type) may dominate, while oleochemical blends supply natural-labelled grades.

In plain English

A sugar-based surfactant used for cleansing and foaming in washes. It is made by joining glucose from starch to a C9-11 fatty alcohol made from petrochemicals.

CosIng definition: C9-11 Alkyl Glucoside is the product obtained by the condensation of C9-11 alcohols with glucose

Natural alternatives with the same function

References

  1. 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.
  2. 2C9-11 ALKYL GLUCOSIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3C9-11 ALKYL GLUCOSIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=C9-11%20ALKYL%20GLUCOSIDE