STEARETH-100 is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

STEARETH-100

Safety grade: A

Steareth-100 is a cleansing and thickening agent made by chemically modifying stearic acid, a fatty substance derived from vegetable or animal oils. It helps products blend oil and water together while creating a smooth, gel-like texture.

This ingredient works as a surfactant to cleanse the skin by removing dirt and oil, while also thickening the product to create a desirable gel consistency and improve how the formula feels and spreads.

Graded using: COSING, FDA.

Last verified: May 26, 2026

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