C11-15 ALKETH-20 (FORMERLY C11-15 PARETH-20) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

C11-15 ALKETH-20 (FORMERLY C11-15 PARETH-20)

Safety grade: A

A gentle cleaning ingredient derived from plant oils, this substance helps mix oil and water in cosmetic formulas so products blend smoothly and spread evenly on skin. It's commonly used in cleansers, shampoos, and makeup removers to improve how well products work and feel when applied.

Graded using: COSING.

Last verified: June 9, 2026