KERATIN FIBERS hair fibers #light blond from The Cosmetic Republic. Reconstructive hair fibers with color for light blonde hair. It is an ideal treatment to combat hair shortage. These hair fibers are reconstructive and help hide alopecia in seconds by interweaving with natural hair. They are microfibres resistant to rain, wind and perspiration. They do not stain or discolor. Apply to dry hair on the areas to be covered.