Toppik Hair Building Fibers, made of colored keratin protein, blend undetectably with existing hair strands to instantly create the appearance of naturally thick, full hair. HOW TO USE: Dry and style hair as usual. Shake or spray (with Toppik Spray Applicator) Hair Fibres into thinning areas. If applying near the hairline, use Toppik Hairline Optimiser for a natural-looking hairline. Gently pat hair to disperse Fibers. For longer-lasting results, finish with Toppik FiberHold Spray.