If you are suffering from hair loss or thinning of hair, Caboki Medium Brown Hair Building Fibers can help you restructure your hair. The hair fibers instantly adhere to the hair strands, turning the look of fine hair into a fuller and thicker one. They also cover up thinning bald areas. The fibers stay firm in their place for a long time, and stay unaffected from sweat, water and wind. The micro fibers blend well into the natural hair and turn invisible to the eyes. This product is suitable for both men and women.