TOPPIK Hair Building Fibers are made from keratin protein, the same protein that naturally makes up your hair. These microscopic, statically charged fibers are designed to cling to existing hair, instantly making it look thicker and fuller. These fibers are an effective solution for minimizing the appearance of thinning hair, supporting a natural look by seamlessly blending with your existing hair color. Ideal for creating the illusion of density and coverage where needed, these fibers provide an immediate aesthetic improvement.