Gentle & Clump-Proof Undetectable real hair look and natural finish, fibers add density to your hair, making it appear fuller and thicker. providing all-day coverage, so you can feel confident no matter what your day brings natural and effective solution for those with hair loss. Natural Keratin Hair Fibers Use plant-sourced keratin protein to create unscented hair fiber , blend seamlessly with your existing hair, the hair fibers are harmless to the scalp, instantly making it look fuller and thicker. Rainproof, Windproof & Sweatproof Made of natural, colored Keratin Fibers that blend undetectably into existing hair, USTAR Hair Building Fibers resist wind, rain and perspiration but remove easily with shampoo. No stains are left on your clothes and pillow.