Toppik Hair Building Fibers in Medium Brown is a 27.5g instant hair thickening solution that creates the appearance of fuller, thicker hair. This professional-grade product uses advanced keratin fibers that seamlessly blend with existing hair to provide natural-looking coverage for thinning areas. Key features: • Made with natural keratin protein fibers • Medium brown shade for natural color matching • Instantly creates fuller, thicker-looking hair • Weather and wind resistant • Easy to apply and remove • Stays in place until next shampoo • Large 27.5g container size The product features statically charged fibers that bond securely to existing hair strands for long-lasting results. The medium brown shade is specifically formulated to match natural brown hair tones. The fibers resist wind, rain and perspiration while remaining completely natural in appearance. Suitable for both men and women looking to enhance hair density and cover thinning areas. The product can be easily removed with regular shampoo.