UNDECETH-8 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

UNDECETH-8

Safety grade: A

Undeceth-8 is a gentle cleaning and conditioning agent made from natural plant oils that have been chemically modified. It helps mix oil and water together in skincare products while softening and moisturizing the skin.

This ingredient works as a mild cleanser and emulsifier that helps blend different product components together while also conditioning and softening the skin.

Graded using: COSING.

Last verified: May 26, 2026