XFusion’s Keratin Fibers are derived from a natural wool source that is nearly identical to human hair. They have the ideal natural static charge to help keep the Fibers in place and also contain tiny ridges that mimic human hair. These elements are what allow the Fibers to blend undetectably with your existing hair and look completely natural, even up close. Other fibers are derived from cotton, plant-based materials and rayon, or lower-grade sources like fish bones, nails and hooves. These other fibers lack the natural-looking texture to blend flawlessly into your hair, and can fall out, clump, or shift during the day. Applying XFusion Keratin Hair Fibers is easy. Simply spray the Keratin Hair Fibers into hair using the XFusion Spray Applicator, and use the XFusion Hairline Optimizer when concealing any areas near the front hairline. This will give you the most natural-looking hairline, and also avoid having Keratin Hair Fibers fall onto the forehead. Finish with XFusion FiberHold Spray for longer-lasting results!