Database/Antistatic/PEG-2 Stearamine
Mostly natural · ISO 16128

Is PEG-2 Stearamine natural?

Mostly. Ethoxylated fatty amine. The vegetable-oil or tallow stearyl alkyl chain is natural; the amine nitrogen comes from synthetic ammonia and the 2 ethylene-oxide units are petrochemical, as on the site's plain fatty-amine entries.

INCI namePEG-2 Stearamine
CAS10213-78-2
FunctionAntistatic · Emulsifying Surfactant
FeedstockVegetable-oil or tallow stearyl fatty amine (fatty nitrile…

How we scored it

Stearyl chain C18H37 253.5 Da (natural) ; nitrogen 14.0 Da (synthetic ammonia, petrochemical as for the parent fatty amine) + 2×EO 88.1 Da + 2 terminal H (petrochemical ethylene oxide); total 357.6 Da → 253.5/357.6 = 0.71.
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

Vegetable-oil or tallow stearyl fatty amine (fatty nitrile hydrogenated with ammonia-derived nitrogen) reacted with about 2 mol of ethylene oxide.

In plain English

An emulsifier made from a fatty substance, typically derived from vegetable fat, combined with a small amount of a petroleum-derived chemical. Most of its weight comes from the plant-derived part.

CosIng definition: 2,2'-(Octadecylimino)bisethanol

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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. 2PEG-2 STEARAMINE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3PEG-2 STEARAMINE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PEG-2%20STEARAMINE