Our dog chewed up a black printer cartridge all over our mint green carpet, we steam-cleaned and scrubbed it, the next morning it had bled back through. Five days later we saw a Whip-It® demo at BJ’s and the demonstrator was unsure with it being five days later that the stain would come out. I am very please that the stains have all been removed from the Whip-It® Stain Remover, great product!