reds need to be pre-washws-before teaming with whites! and washed until no more color runs- some reds never stop-until they are pink- you do not say what kind of fabric it is---batiks and handdyes tend to run the most when it comes to reds-sometimes it is just fugative dye---(excess that was not rinsed out well enough) sometimes it is just they dye and unfortunately will never stop until it is gone-sorry you waited and used it before finding out you had a bleeder- you should always prewash reds- and at least color check other darks retayne may help= synthropol will wash away the excess dye-and keep it from getting on other fabrics- it keeps the dye in the water- and does not let it adhere to the other fabrics in the water- so it may help get the pink out of your whites.