What is a spoolie brush used for?

WHAT IS A SPOOLIE BRUSH?
Picture a mascara wand minus the mascara. Got it? That's exactly what a spoolie brush is! A spoolie is a popular tool you've likely come across before without even realizing it. A spoolie will often come with eyebrow makeup products that you buy. There are eyebrow pencils with spoolies on the opposite end and brow pomades and gels that come with their very own double-ended brush, featuring a spoolie on one side and an angled brush on the other.

Now, what is the spoolie for? It must be pretty important if they come with so many products! A spoolie brush is meant to be used to comb through, blend, and shape your brows. While you can fill in your eyebrows without one, following up with a few strokes of a spoolie can make your eyebrows look more natural and help with achieving trendy looks like brushed up brows.