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

MIBK

Methyl Isobutyl Ketone

Safety grade: A**

MIBK is a clear liquid chemical that evaporates quickly at room temperature. It's commonly used in nail polish, paints, and adhesives because of its excellent ability to dissolve other substances.

MIBK serves as a solvent to dissolve and blend ingredients together, helps remove unwanted odors through denaturation, and can carry fragrance compounds in cosmetic formulations.

Graded using: COSING.

Last verified: May 26, 2026