Database/Cleansing/Sodium Oleyl Sulfate
100% natural origin · ISO 16128

Is Sodium Oleyl Sulfate natural?

Yes. Both the oleyl fatty-alcohol chain and the sulfate/sodium group trace to oleochemical and mineral feedstocks with no ethoxylation involved.

INCI nameSodium Oleyl Sulfate
CAS1847-55-8
FormulaC18H35NaO4S · 370.5 Da
FunctionCleansing · Emulsifying Surfactant
FeedstockThe feedstock is oleyl alcohol from vegetable or…

How we scored it

Oleyl-O- (natural fatty alcohol, 267.5 Da) + SO3Na (natural mineral, 103.1 Da); 370.5/370.5 = 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

The feedstock is oleyl alcohol from vegetable or animal fat, sulfated with sulfuric acid and neutralised with sodium hydroxide. No petrochemical fragment is present in the final molecule.

In plain English

A cleansing and foaming ingredient made by sulfating oleyl alcohol, a fatty alcohol derived from plant or animal oils.

Structure

2D structure of Sodium Oleyl Sulfate

sodium [(Z)-octadec-9-enyl] sulfate

PubChem CID 23686132 ↗

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. 2Sodium Oleyl Sulfate. PubChem CID 23686132. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3SODIUM OLEYL SULFATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4SODIUM OLEYL SULFATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SODIUM%20OLEYL%20SULFATE