Toppik Hair Building Fibers in Medium Brown is a 55g instant hair thickening solution that creates the appearance of naturally fuller hair. Made with colored keratin protein fibers, it seamlessly blends with existing hair to conceal thinning areas and add volume. Key features: • Large 55g container for extended use • Made with natural keratin protein fibers • Instantly creates fuller-looking hair • Medium brown shade for natural color matching • Weather and wind resistant • Stays in place until next shampoo • Easy to apply and remove The product works through statically charged fibers that bond securely to existing hair strands, creating natural-looking density and coverage. The medium brown shade is specifically formulated to blend seamlessly with similar hair tones. The fibers resist wind, rain and perspiration but wash out easily with regular shampoo. Suitable for both men and women looking to enhance their hair's appearance and cover thinning areas.