Database/Emulsifying Surfactant/Beheneth-10
Mostly petroleum · ISO 16128

Is Beheneth-10 natural?

Mostly not. Behenyl (C22) fatty alcohol is natural/oleochemical; the 10-mole ethylene oxide chain is petrochemical.

INCI nameBeheneth-10
CAS26636-40-8
FunctionEmulsifying Surfactant · Cleansing Surfactant
FeedstockThe docosanol backbone typically comes from behenic acid…

How we scored it

Docosanol C22H46O 326 Da (natural) + 10xEO 44 Da (petrochemical) 440 Da = 766 Da; 326/766 = 0.43. Supplied formula (C28H58O4) matches only ~3 EO, contradicting the stated 10 mol EO — used description.
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

The docosanol backbone typically comes from behenic acid in vegetable oils (e.g. rapeseed). It is ethoxylated with petrochemical ethylene oxide to give the surfactant.

In plain English

A fatty alcohol from behenic acid (found in vegetable fats) reacted with ethylene oxide, a petrochemical. Used as an emulsifier and cleansing agent that helps water and oil mix in creams, lotions and cleansers.

CosIng definition: Docosanol, ethoxylated, 10 mol EO (average molar ratio)

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. 2BEHENETH-10. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3BEHENETH-10. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=BEHENETH-10