Brenda Christian Universal Brow Definer

Universal Brow Definer is a remarkable one-color-fits-all eyebrow pencil that scientifically reads and automatically color adjusts to the pH of your eyebrow hair follicle. No joke! Universal Brow Definer is specifically designed to simulate the look of eyebrow hairs. Upon touching the eyebrow area, it automatically color-adjusts from light to dark, warmer to cooler, etc., to match all natural eyebrow hair shades - from Platinum Blonde to the deepest Brunette.