Brow Power Universal Eyebrow Pencil is our best-selling, award-winning eyebrow pencil that comes in four universal shades to match every hair color. Brow Power is super customizable! It can match any hair color based on pressure. The lighter you press, the lighter the color and the harder you press, the deeper the color. Even if you have thin eyebrows, sparse eyebrows or no eyebrows at all, the budge-proof formula ensures natural-looking brows that last with brow-loving biotin and proprietary Brow Power Technology to give you your most beautiful brows yet!