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 to existing hair, creating the appearance of thicker, fuller hair instantly. Key features: • Made with natural keratin protein fibers • Creates instant fullness and density • Weather and wind resistant • Stays secure until next shampoo • Easy to apply and remove • Color-matched for dark brown hair • Large 27.5g/0.97oz size The fibers work through static electricity to bond securely to even the finest hair strands, providing natural-looking coverage. The dark brown shade is specifically formulated to blend seamlessly with dark brown hair tones. The product is suitable for both men and women and can be used daily. It washes out easily with regular shampoo while being resistant to wind, rain and perspiration throughout wear.