Hair building fibers for all hair types and textures. Benefits Instantly fills in thinning areas and conceals hair loss Creates the appearance of fuller and thicker hair Blends undetectably with existing hair strands Covers also gray roots and color-treated root re-growth Stays until you wash your hair and easily washes out with shampoo Colorfast formula - it won’t run or rub off on clothes or pillows Resists wind, rain, and perspiration for long-lasting results in all conditions Does not clog pores or affect a scalp condition Key ingredients Colored keratin protein - the same thing that makes up human hair. The natural Keratin used by Toppik has an innate static charge that ensures Fibers adhere to any hair type. The Fibers have a strong natural static charge that creates a magnetic effect, tightly binding Toppik Hair Building Fibers to even the finest strands of human hair. How to use Dry and style hair as usual. Shake or spray (with Toppik Spray Applicator) Hair Fibers into thinning areas. If applying Hair Fibers near the hairline, use Toppik Hairline Optimizer to achieve a natural-looking front hairline. Gently pat hair to disperse Hair Fibers. If desired, lightly comb, brush, or style your hair after applying Hair Fibers. Tip! For even longer-lasting results and added shine, use Toppik FiberHold Spray.