How do you remove hair color from a sweatshirt that has unfortunately been dried in the dryer?
This is a very challenging situation made worse by the exposure of the dye to the high heat of a dryer. I hope your sweatshirt is white—that increases your chances of success. If it is a white cotton sweatshirt (check the label to make sure it is 100% cotton or a poly/cotton blend and does not contain any spandex) then you can try pretreating the stain with Clorox® Ultimate Care Bleach. This thickened bleach product has the same great sodium hypochlorite active in our Clorox® Regular Bleach2, but at a lower concentration that is safe to apply directly to bleachable white fabrics. Use the cap to apply the thickened bleach to the stain on the fabric and gently rub in. Immediately wash the sweatshirt in the hottest water recommended on the care label using detergent and more Clorox® Ultimate Care Bleach. Air dry and check your progress. If the stain is lighter, then repeat the procedure a few more times; hopefully the stain will come all the way out. If the appearance doesn’t change much, then at least you already know what you will be wearing the next time you are using hair dye!
I hope this is helpful! Thanks for writing, and let me know how it turns out.