Toppik Hair Building Fibers in Dark Brown is a premium hair thickening solution that provides instant fullness for thinning hair. This 55g container features natural keratin protein fibers that blend seamlessly with existing hair to create the appearance of thicker, fuller hair instantly. Key features: • Made with natural keratin protein fibers • Instantly creates fuller-looking hair • Color-matched for dark brown hair • Weather and wind resistant • Stays secure until next shampoo • Easy to apply and remove The product works through statically charged fibers that bond securely to existing hair strands, providing natural-looking coverage and density. The dark brown shade is specifically formulated to match natural dark brown hair colors. The fibers resist wind, rain and perspiration while remaining securely in place until washed out with regular shampoo. Suitable for both men and women looking to enhance hair appearance and cover thinning areas.