Toppik’s Hair Building Fibers – Dark Brown offers a straightforward solution for achieving visibly fuller and thicker hair. Crafted from natural Keratin Protein, these tiny fibers seamlessly merge with existing hair for a natural look that stays in place.Ideal for concealing thin spots and scalp visibility, the fibers are resistant to wind, rain, and sweat, providing durable, dependable coverage. Easily washed out with shampoo, they enable a fresh, voluminous appearance daily. Size:1.94oz