UNDECETH-9 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

UNDECETH-9

Safety grade: A

Undeceth-9 is a gentle cleaning and conditioning agent derived from coconut oil that helps mix oil and water-based ingredients together. It also softens the skin and makes products feel smooth and pleasant to use.

This ingredient works as a mild cleanser and emulsifier that helps blend different product components, conditions the skin, and improves the texture and feel of cosmetic formulations.

Graded using: COSING.

Last verified: May 26, 2026