INCI name

MEK

Methyl ethyl ketone (butanone)

A volatile ketone used as a solvent.

What it is

MEK is methyl ethyl ketone (butanone), a simple volatile ketone with four carbon atoms. CosIng lists it as a solvent and perfuming ingredient.

Where it is used

Found mainly in nail polishes and other nail products.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

The label does not show the amount used.

Functions

Solvent
Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).
Perfuming
Used for perfume and aromatic raw materials.

EU regulation

This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

Products with this ingredient (18)

Check a full ingredient list