What it is: An angled, nylon-bristle brush for eyebrows. What it does: Eyebrow Brush #9N allows for precise application of eyebrow gels and powders. Its density and size are ideal for applying product in between eyebrow hairs while its firm, angled tip creates natural-looking strokes. What else you need to know: Ideal for applying Waterproof Eyebrow Corrector. Sephora is the exclusive beauty retailer for this product.