PPG-4 DIGLYCERYL ETHER is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PPG-4 DIGLYCERYL ETHER

Safety grade: A

This is a lightweight synthetic liquid that acts like a slip agent and moisture holder. It helps products spread smoothly on skin and hair while keeping them hydrated and soft.

This ingredient conditions hair and skin by improving softness and smoothness, helps products mix together properly, and makes formulas feel lighter and more pleasant to use.

Graded using: COSING.

Last verified: May 26, 2026