Toppik’s Hair Building Fibers – Black creates the appearance of thick, full hair in moments. Tiny colored keratin fibers adhere to each strand, covering bald spots and thinning areas instantly.Blending seamlessly with natural black hair, these fibers endure rain, wind, and sweat for prolonged results. They wash out effortlessly with shampoo, making them an ideal choice for a quick and convincing increase in hair volume. Size:0.42oz(Black)