Nanogen is a thinning hair concealer that is made of microscopic keratin fibers that can be sprinkled onto thinning hair and bald spots to instantly increase the thickness and density of each hair. Contrary to popular belief, thinning and balding scalps contain thousands of tiny colorless hairs. These hairs, along with normal hairs allow Nanogen to bond tightly and form a completely natural pattern. While it certainly covers bald spots, Nanogen is much more than just a concealer. It can give your hair a fuller look and feel, as well as increased density. It is the quick and easy solution to thinning hair!