Xfusion Keratin Fibers are perfect for those who have thinning areas on their head and want to instantly fill those areas. It is made of colored keratin proteins, which will blend in effortlessly and cling to existing hair strands to create the appearance of thicker and fuller hair instantly. It is available in nine shades to match any hair color, and also works great as a root touch-up in between colorings. It is resistant against wind, rain and perspiration and is undetectable for a long-lasting result in various conditions. These fibers work for all hair types and textures, which makes covering thinning spots effortless. It will easily wash out with shampoo. It is suitable for men and women and is recommended by doctors.