Xfusion 0.42-ounce Keratin Hair Fibers in Medium Brown instantly add volume and thickness to thinning hair. These premium keratin fibers are electrostatically charged to bond with your natural hair, creating a fuller, thicker appearance in seconds. Perfect for covering bald spots, thinning areas, and hair loss, they provide a natural-looking solution that lasts all day. The medium brown shade blends seamlessly with most hair colors. Water-resistant and sweat-resistant, these fibers stay in place through daily activities. Ideal for both men and women experiencing hair thinning or hair loss, this professional-grade product delivers confidence-boosting results instantly.