POLYGLYCERYL-3 DIISOSTEARATE is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

POLYGLYCERYL-3 DIISOSTEARATE

Safety grade: A

This is a man-made ingredient created by combining glycerin (a natural humectant) with fatty acids. It acts like a bridge between oil and water, allowing these two normally incompatible substances to mix smoothly together.

It works as an emulsifier to blend oil and water-based ingredients in cosmetic products, creating a stable, smooth texture that won't separate over time.

Graded using: COSING, FDA.

Last verified: May 26, 2026