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

MEK

MEK (Methyl Ethyl Ketone)

Safety grade: A**

MEK is a clear, colorless liquid with a sharp smell that evaporates quickly. It's a solvent commonly used in industrial products to dissolve and mix other ingredients together.

MEK acts as a solvent to dissolve and blend ingredients together, and as a perfuming agent to help fragrance compounds mix evenly throughout the product.

Graded using: COSING.

Last verified: May 26, 2026