Toppik Hair Building Fibers are safe, natural, and undetectable way to improve the appearance of thinning hair without harmful drugs, chemicals, or surgery. Toppik Hair Building Fibers are made from pure organic Keratin Protein; the same protein found in human hair. These tiny microfiber hairs are electro-statically charged to form a magnetic attraction with your existing hair - however thin - and blend perfectly to conceal the appearance of thinning and balding in seconds.