XFusion 0.53-ounce Black Keratin Hair Fibers
XFusion 0.53-ounce Black Keratin Hair Fibers. Boost your natural hair with these black keratin hair fibers from XFusion. These fibers help cover up hair loss or thinning patches of hair to help you feel more confident, and they add thickness and fullness to your style. You can also use the black fibers to conceal your roots between color treatments.