High definition brow define brow define is a long lasting medium firm brow pencil enriched with waxes for easy application and is ideal to fill define blend and shape brows to perfectio the brow define includes a built in sharpener so you can always have a precise tip to define your brows while the unique formula makes the brow define a smudge proof and long lasting eyebrow pencil perfect for keeping your brows in shape all day long enriched with vitamins c and e adding antioxidant bene