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

UNDECANOIC ACID

Safety grade: A

Undecanoic acid is a naturally occurring fatty acid that comes from plants and is used in skincare products. It helps control oily skin and has antimicrobial properties that can help with certain skin conditions.

This ingredient works to reduce excess oil production on the skin, cleanse pores, help blend different ingredients together, and improve the overall feel and scent of the product while providing antimicrobial benefits.

Graded using: COSING.

Last verified: May 26, 2026