Database/Cleansing/Sodium Isostearoamphoacetate
Mostly natural · ISO 16128

Is Sodium Isostearoamphoacetate natural?

Mostly. Natural isostearic acid, from isomerized oleic acid, is condensed with petrochemical aminoethylethanolamine and carboxymethylated with chloroacetic acid.

INCI nameSodium Isostearoamphoacetate
FunctionCleansing · Foaming
FeedstockIsostearic acid, made by catalytic isomerization of natural…

How we scored it

Isostearoyl natural (267.5 Da) + Na (23.0) = 290.5 natural; AEEA backbone + chloroacetate petrochemical = 160.2; total ~450.6 -> 0.64.
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

Isostearic acid, made by catalytic isomerization of natural oleic acid (vegetable-oil origin), reacts with petrochemical aminoethylethanolamine then chloroacetic acid, and is neutralized with sodium hydroxide. No formula was supplied; structure estimated from the amphoacetate family and cross-checked against this batch's disodium tallowamphodiacetate.

In plain English

A mild, foam-boosting cleansing ingredient made by combining a branched natural fatty acid with a petrochemical amine, then neutralizing with sodium; used in shampoos and washes.

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