PEG-40 is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

PEG-40

PEG-40 (Polyethylene Glycol-40)

Safety grade: A

PEG-40 is a clear, liquid ingredient made from petroleum that acts like a humectant, drawing moisture into the skin and hair. It also helps dissolve other ingredients and keep products from separating.

This ingredient attracts and holds water to keep skin hydrated while also helping to dissolve and mix other components in cosmetic formulations.

Graded using: COSING, FDA.

Last verified: May 26, 2026