Brow Definer Pencil - Universal Brow Definer and Perfect Brow are always your perfect color, ranging from Swedish Blond to African American Ebony. Apply Brow Definer in very short, firm strokes working in the direction of brow hairs natural growth, forming tiny little strokes from the roots. Whether your are filling voids in the brow area due to scar tissue, waxing or tweezing errors or loss of hair due to Alopecia or chemotherapy, always follow the basic, natural brow shape. The pencil has been designed to make the hair strokes fatter at the base, thinning to its end, just like natural brow hair. The American Journal of Aesthetic Medicine recommends Brend Christian Cosmetics for the creation of brows for anyone undergoing chemotherapy or suffering from Alopecia Areata.