Toppik Black Hair Building Fibres instantly makes thinning hair look thick & full. made from all natural, coloured Keratin protein; designed to cling to existing hair & in seconds fill in all thinning or balding areas. It is totally undetectable even from as close as two inches. All you will see is thicker looking hair. BR> Superior technology, Blends naturally with hair & conceals scalp. Resists wind, rain & perspiration. Works with all hair types & all ethnicities. Stays securely in place but can be removed easily with shampoo. For both women & men who have fine, thin or thinning hair. Can also be used by pregnant women.