Database/Antistatic/Stearamidopropyl Betaine
Mostly natural · ISO 16128

Is Stearamidopropyl Betaine natural?

Mostly. Oleochemical stearic acid forms the natural fatty chain; the propyl-dimethyl-glycine betaine head is built from petrochemical DMAPA and chloroacetate.

INCI nameStearamidopropyl Betaine
CAS6179-44-8
FormulaC25H50N2O3 · 426.7 Da
FunctionAntistatic · Cleansing
FeedstockMade by amidating oleochemical stearic acid (vegetable oil…

How we scored it

Stearoyl C18H35O 267Da (natural stearic acid) + amidopropyl-dimethyl-betaine C7H15N2O2 160Da (petrochemical DMAPA + chloroacetate) = 267/427 = 0.63
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

Made by amidating oleochemical stearic acid (vegetable oil or tallow) with dimethylaminopropylamine, then quaternising with sodium chloroacetate. The fatty chain is natural; the betaine head group is synthetic.

In plain English

A conditioning, foam-boosting cleansing ingredient in shampoos and washes. It's built from stearic acid, a fatty acid from vegetable oil or tallow, joined to lab-made chemical building blocks to form a mild surfactant that reduces static and softens hair and skin.

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Structure

2D structure of Stearamidopropyl Betaine

2-[dimethyl-[3-(octadecanoylamino)propyl]azaniumyl]acetate

PubChem CID 80317 ↗

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. 2Stearamidopropyl Betaine. PubChem CID 80317. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3STEARAMIDOPROPYL BETAINE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4STEARAMIDOPROPYL BETAINE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=STEARAMIDOPROPYL%20BETAINE