STEARETH-21 is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

STEARETH-21

Safety grade: A

This is a gentle cleansing agent made by combining stearic acid (a fatty acid) with a sugar-derived ingredient. It helps remove dirt and oil from skin while keeping products mixed together smoothly.

Steareth-21 works as a mild cleanser and helps blend oil and water-based ingredients together in formulas, while also removing impurities from the skin.

Graded using: COSING, FDA.

Last verified: May 26, 2026