Toppik Hair Building Fibers in Dark Brown is a revolutionary hair thickening solution that provides instant fullness for thinning hair. This 12g/.42oz container contains 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, thicker-looking hair • Stays secure until next shampoo • Weather and wind resistant • Easy to apply and remove • Perfect color match for dark brown hair • Safe for daily use The product works through statically charged fibers that securely bond to existing hair strands, creating natural-looking density and coverage. The dark brown shade is specifically color-matched to blend seamlessly with dark brown hair tones. The fibers are resistant to wind, rain, and perspiration but wash out easily with regular shampoo. Suitable for both men and women looking to enhance their hair's appearance.