Gel eyeliner gives the longest-wearing and most controllable line of any format — provided the brush is right. Most gel liner disasters are a tool problem rather than a hand problem: a soft, fluffy brush cannot leave a sharp edge no matter how steady you are.

The brush decides everything

Two shapes work:

  • A fine synthetic liner brush — a very thin head, 6 to 8 mm long, springy, with a point. Draws hair-thin lines and flicks.
  • An angled flat brush — a short, stiff bristle cut on the diagonal. Better for thicker lines along the lashes, and easier if you prefer stamping to sweeping.

The non-negotiable quality is stiffness. The head should spring back rather than flop. Synthetic beats natural hair here because it does not absorb the product.

The sequence

  1. Load less than you think. One light sweep across the surface of the gel. If product has worked into the base of the bristles you have too much — wipe it off against the rim of the pot.
  2. Fill the lash roots first. Push the brush into the gaps between lashes along the whole line. Everything after this sits on a filled background, so no pale gaps show through.
  3. Draw in three sections, never one arc: middle of the lid to the outer corner, inner corner to the middle, then the flick.
  4. Build the flick from below. Continue the imaginary line of your lower lash line up and out, lay down a short stroke, then connect it to the main line.
  5. Fill the triangle between flick and line with the brush pressed flat.
  6. Hold still for twenty to thirty seconds before blinking normally.

Gel is correctable right up until it dries. A flat brush dampened with micellar water lifts a mistake without disturbing the eyeshadow beside it.

Four common failures

A broken, patchy line. Too little product, or a brush that is too soft. Claggy, uneven edges. Too much product. Wipe off and build in thin passes. The pot has thickened. Normal after some months of use. Once it drags rather than glides, replace it rather than trying to revive it. Mismatched wings. Draw both flicks before either main line, so you are comparing angles rather than finishing one eye and hoping.

Wipe the brush with micellar water after every use and wash it properly once a week — dried gel at the base of the bristles is what splits the tip and ruins the line.

Liner and brush formats are listed in the current catalogue on faberlic.com. More eye techniques are in the makeup section.