Toppik Hair Building Fibers in Dark Brown is a revolutionary hair thickening solution that provides instant fullness for thinning hair. This 55g container features natural keratin protein fibers that bond to existing hair, creating the appearance of thicker, fuller hair instantly. Key features: • Made with natural keratin protein fibers • Instantly creates fuller, thicker-looking hair • Color-matched for dark brown hair • Weather and wind resistant • Stays secure until next shampoo • Large 55g size for extended use • Easy to apply and remove The product works through statically charged fibers that securely bond to even the finest hair strands. The dark brown shade is specifically formulated to blend seamlessly with natural dark brown hair colors. The fibers are resistant to rain, wind, and perspiration but wash out easily with regular shampoo. Suitable for both men and women looking to conceal thinning areas or add overall volume to their hair. The larger 55g size provides extended usage compared to smaller containers.