OLETH-25 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

OLETH-25

Safety grade: A

Oleth-25 is a cleansing agent derived from oleic acid (a natural fatty acid found in oils). It helps remove dirt, oil, and makeup from skin by breaking down oils so they can be washed away with water.

This ingredient works as a surfactant and cleanser to effectively remove impurities and excess oils from the skin and hair while helping to create a smooth, uniform product texture.

Graded using: COSING.

Last verified: May 26, 2026