PEG-135 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PEG-135

Safety grade: A

PEG-135 is a thick, liquid polymer made from petroleum-derived materials that acts like a humidifier for your skin. It helps products absorb moisture from the air and keeps them from drying out.

This ingredient draws moisture into the skin and helps dissolve other components in cosmetic formulas, keeping products stable and your skin hydrated.

Graded using: COSING.

Last verified: May 26, 2026