Look Thick Hair Fibers are made of Keratin Proteins. Keratin is the fibrous protein that makes up real hair giving real looking results. Our Hair fiber is not intended to treat, prevent, cure, relieve, resolve, stop or reduce hair loss or promote the growth of hair. It is a cosmetic product made out of tiny fibers that conceal thinning hair and cover baldness once sprinkled onto hair. Using hair fibers will immediately improve the look of the thinning hair, but it takes some practice to style the hair properly and to make the thinner spots appear fuller using the hair fibers. Buy our hair fibers online to cover your bald spots.