Toppik Hair Building Fibers in Dark Brown is a revolutionary hair thickening solution that provides instant fullness for thinning hair. This 27.5g container features natural keratin protein fibers that bond seamlessly with existing hair to create the appearance of thicker, fuller hair instantly. Key features: • Made with natural keratin protein fibers • Creates instant fullness and density • Stays securely in place until next shampoo • Weather and wind resistant • Easy to apply and remove • Color-matched for dark brown hair • Large 27.5g container size The product works through statically charged fibers that securely bond to existing hair strands, creating natural-looking coverage. The dark brown shade is specifically formulated to blend perfectly with dark brown hair tones. The fibers are resistant to rain, wind, and perspiration but wash out easily with regular shampoo. Suitable for both men and women looking to enhance hair thickness and cover thinning areas.