Build Fullness This hair building fiber and concealer refill pack helps add fullness and thickness to thinning spots for a natural look Color Matched The dark brown color is perfectly matched to growout and cover gaps without appearance of a dyeline Lightweight Formula The airy formula feels weightless and undetectable allowing you to style as usual TangleFree Application Just sprinkle or brush the fibers onto palms and apply to hairline or crown for an even dispersion LongLasting Coverage A little product goes a long way to camouflage up to 25 square centimeters of scalp throughout the day