Toppik Hair Building Fibers in Black is a revolutionary solution for hair loss and thinning hair. These fibers instantly cling to existing hair to create the appearance of thicker, fuller hair. The natural keratin fibers are statically charged to bond securely with your hair, providing a natural-looking coverage for bald spots and thinning areas. Toppik Hair Building Fibers are resistant to wind, rain, and perspiration, ensuring long-lasting results throughout the day. With a variety of shades available, you can easily find the perfect match for your hair color, giving you a seamless and undetectable finish.