I used this to essentially dye a white item black for a costume. It worked pretty well, turning the item a very dark gray. Considering that this is intended to darken faded black items, I think that this product definitely does its job. I found that the paint did fade some after washing, but after 1-2 washes, it did not fade any more and also did not bleed onto other clothes in the washer. Keep in mind that I used this on an item that was originally white, and my item turned out a dark gray even after washing and use.