DIETHYL SUCCINATE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

DIETHYL SUCCINATE

Safety grade: A

Diethyl succinate is a synthetic liquid ingredient derived from succinic acid that feels light and smooth on the skin. It helps products spread easily and absorb quickly without leaving a greasy residue.

This ingredient softens and smooths the skin, helps mask unpleasant odors in formulations, makes products easier to apply, and improves the texture and feel of cosmetics.

Graded using: COSING.

Last verified: May 26, 2026