Database/Antistatic/PEG-15 Stearamine
Mostly petroleum · ISO 16128

Is PEG-15 Stearamine natural?

Mostly not. Ethoxylated fatty amine. The vegetable-oil or tallow stearyl alkyl chain is natural; the amine nitrogen comes from synthetic ammonia and the 15 ethylene-oxide units are petrochemical, as on the site's plain fatty-amine entries.

INCI namePEG-15 Stearamine
CAS9003-93-4
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) + 15×EO 660.8 Da + 2 terminal H (petrochemical ethylene oxide); total 930.3 Da → 253.5/930.3 = 0.27.
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 15 mol of ethylene oxide.

In plain English

An emulsifier and anti-static ingredient made from a fatty substance, typically from vegetable fat, reacted with 15 units of a petroleum-derived chemical. Most of its weight comes from the petroleum part.

CosIng definition: Octadecanamine, ethoxylated (15 mol EO average molar ratio)

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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-15 STEARAMINE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3PEG-15 STEARAMINE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PEG-15%20STEARAMINE