What do Rejuvenate Hair Fibers do? Rejuvenate hair fibers provide perfect coverage for thinning areas, the hairline, wide parts, or bald spots. They are designed to withstand wind, rain, and sweat, ensuring a firm hold throughout the day! What are the ingredients? Our hair fibers are made from 100% all-natural colored cotton fibers. They can be completely washed out with shampoo. What if the color I choose doesn't match? If the color you choose doesn't blend perfectly with your hair, we'll send you a different color completely free of charge! We offer 10 hair powder colors for a perfect Color Match! Are the fibers noticeable? Our hair fibers blend seamlessly with your hair, providing a real hair effect and an undetectable finish. No mess, no clumps, and no staining of clothes, skin, or pillowcases. What if my hair color is between 2 available shades? Go darker! It will look the most natural! Always aim to match the hair at the ROOT. Fibers that are too light will always create an undesirable finish.