I have very thin hair on the top of my head, almost to my hairline. As a woman, this is really hard to deal with since hair is one of the first things people notice. I have tried many products to help disguise my hair loss, and Ustar is the best product I have found. It seems much more fine than other fibers, and I think it gives me a much more natural looking coverage. I combine the dark brown and auburn to match my hair color. The only issue I have had is that, as careful as I am when applying, I always end up with a lot of the fibers on my bathroom counter.