SureThik Hair Thickening Fibers are an all-natural solution for both men and women. These microscopic hair fibers build upon your existing hair to produce dramatic density, volume and total coverage. SureThik is made from the same organic keratin protein as your own natural growing hair. It is completely safe and an all natural solution for everyone. Completely eliminates the appearance of baldness or thinning hair with SureThik hair building fibers.