Database/Emollient/Glycol Stearate
Mostly natural · ISO 16128

Is Glycol Stearate natural?

Mostly. The stearic-acid portion is oleochemical while the ethylene glycol backbone is made from petrochemical ethylene oxide.

INCI nameGlycol Stearate
CAS111-60-4
FormulaC20H40O3 · 328.5 Da
FunctionEmollient · Emulsifying Surfactant
FeedstockGlycol Stearate is the monoester of oleochemical stearic…

How we scored it

Stearic acid C18H36O2 284 Da (natural) + ethylene glycol C2H6O2 62 Da (petrochemical) - H2O = 267/329 = 0.81.
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

Glycol Stearate is the monoester of oleochemical stearic acid (from vegetable oil or tallow) with ethylene glycol, which is manufactured from petrochemical ethylene oxide. There is no natural route to ethylene glycol.

In plain English

A pearlescent wax that gives shampoos and lotions their opaque, pearly sheen and helps thicken them. It's made by combining a vegetable-oil fatty acid with a petrochemical building block called ethylene glycol.

Natural alternatives with the same function

Structure

2D structure of Glycol Stearate

2-hydroxyethyl octadecanoate

PubChem CID 24762 ↗

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. 2Glycol Stearate. PubChem CID 24762. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3GLYCOL STEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4GLYCOL STEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=GLYCOL%20STEARATE