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Flat definer brush

Flat Eye Liner Brush

by Laura Mercier

Laura Mercier’s synthetic eyeliner brush of firm bristles narrowing to a thin, flat line, sold for exact placement of colour along the lash line.

  • Thin, flat
  • Firm synthetic
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A slim brush with a tiny, square-cut definer head.
An illustration of a flat definer brush — not a photograph of this product.

What a flat definer brush is

A small, very dense, square-cut brush that pushes colour into the roots of the lashes.

How it is used. Press between the lashes along the lash line; do not drag.

Read our flat definer brush guide

The techniques

Tightline
Press liner into the roots of the upper lashes from beneath, so the lash line looks denser with no visible line.
Press
Press product onto the skin without dragging, so it stays where it is put.

What it is used with

Gel eyeliner

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