STEARETH-5 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

STEARETH-5

Safety grade: A

Steareth-5 is a gentle cleaning ingredient made by combining stearic acid (a fatty acid) with a sugar-derived substance. It helps oil and water mix together smoothly in cosmetic products.

This ingredient acts as an emulsifier and cleanser, helping to blend oily and water-based ingredients together and allowing products to spread evenly on skin while gently removing impurities.

Graded using: COSING.

Last verified: May 26, 2026