Blending Brush

What it is

A blending brush is a soft, fluffy, usually domed brush sized for the eye area, used specifically to soften the line between two eyeshadow shades rather than to deposit color itself. It's a finishing tool, typically used after color has already been placed with a flatter, more precise brush.

How it works

Loosely packed, soft bristles pick up almost no product themselves, so passing the brush back and forth over the boundary between two shades moves a small amount of pigment from the more saturated area into the lighter one, gradually diffusing the edge. Because the brush deposits so little of its own color, it can be reused across the transition repeatedly without muddying the look - the softening effect comes from movement, not more product.

How to choose one

• Very soft, loosely packed bristles are essential - a dense or stiff brush will deposit color instead of softening it.
• A tapered or slightly rounded tip follows the crease and socket line of the eye more naturally than a flat one.
• Keep at least one dedicated purely to blending, used with little to no product, separate from brushes used to place color.

Common mistakes

• Loading the brush with product and using it to blend, which just moves concentrated pigment around instead of softening an edge.
• Overworking the same area for too long, which can start lifting and dulling color that was already placed well.
• Using a brush too large for the eye's crease, making it hard to control exactly where the blending happens.