PEG-6 is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

PEG-6

Safety grade: A

PEG-6 is a lightweight liquid made from petroleum-derived materials that acts like a humidifier for your skin. It helps products absorb better and keeps them from drying out.

This ingredient draws moisture into the skin to keep it hydrated and helps dissolve and blend other ingredients together in cosmetic formulas.

Graded using: COSING, FDA.

Last verified: May 26, 2026