An eyebrow pencil is a cosmetic tool used to fill in, shape and define the brows. It typically has a thin, angled tip that allows for precise application and can be used to create natural-looking or more dramatic looks depending on the strokes made with it. The color of an eyebrow pencil is usually brown or dark brown to match most people's natural hair color, but there are also other shades available to suit different skin tones and preferences. Eyebrow pencils come in various forms such as retractable, twist-up or waterproof, with the main goal being to help you achieve your desired brow shape effortlessly.