Toppik Hair Building Fiber Gray 12gToppik Hair Building Fiber Gray 12 g Instant volume. Invisible blending. Natural confidence. Transform thinning areas into fullerlooking hair in seconds. Toppik Hair Building Fiber in Gray is comprised of ultra fine, colored keratin fibers that blend seamlessly with your natural strandsperfect for covering gray or salt and pepper tones. The fibers cling electrostatically, helping to mask scalp visibility and restore a dense, natural appearance. Key