Database/Foam Boosting Surfactant/Stearamide
Mostly natural · ISO 16128

Is Stearamide natural?

Mostly. Stearic acid supplies almost all the mass; the amide nitrogen traces to natural-gas-derived ammonia, per the site's urea/allantoin convention.

INCI nameStearamide
CAS124-26-5
FormulaC18H37NO · 283.5 Da
FunctionFoam Boosting Surfactant · Opacifying
FeedstockMade by reacting stearic acid from vegetable oils…

How we scored it

Stearic acid acyl fragment C18H35O 267 Da (natural, vegetable/animal fat) + NH2 from ammonia (petrochemical, natural-gas route) 16 Da; 267/283.5 = 0.94.
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 reacting stearic acid from vegetable oils or animal tallow with ammonia derived from natural gas. The fatty chain dominates the molecule's mass.

In plain English

Made by reacting stearic acid, a fatty acid from vegetable or animal fat, with ammonia. Used to boost foam, add opacity and control thickness in cleansers and lotions.

Natural alternatives with the same function

Structure

2D structure of Stearamide

octadecanamide

PubChem CID 31292 ↗

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. 2Stearamide. PubChem CID 31292. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3STEARAMIDE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4STEARAMIDE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=STEARAMIDE