STEARETH-12 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

STEARETH-12

Safety grade: A

Steareth-12 is a waxy substance created by chemically combining stearic acid (a natural fatty acid) with ethylene oxide. It helps different ingredients that normally don't mix well, like oil and water, blend smoothly together in cosmetic products.

This ingredient acts as an emulsifier and surfactant to keep oil and water-based components mixed together in products, while also helping dissolve other ingredients and reducing surface tension.

Graded using: COSING.

Last verified: May 26, 2026