- Hair fiber instantly gives you the appearance of thicker and fuller hair by hiding signs of thinning. - Keratin proteins are used to create hair fiber identical to human hair and allow the fibers to blend naturally and undetectably. - Hair fiber has a strong natural static charge that creates a magnetic effect, firmly bonding the fiber even to the finest strands of human hair. - Hair fiber will stay in place throughout the day, even through rain, wind, and perspiration until the next time you shampoo your hair. - Generously build hair fiber in thinning areas. For best results, apply to clean, freshly dried hair before using styling products. Gently tap the hair after application to settle the fiber in place.